Atomic EFI - Wild Horses Inc.
Contents
1. REQ Black Lc eae eras Route this wire directly to Battery Negative or the engine block OPTIONAL Fan circuit 1 This wire supplies ground to activate the circuit It must go to the ground circuit of a relay to control a fan OPTIONAL Pink Fan circuit 2 This wire supplies ground to activate the circuit It must go to the ground circuit of a relay to control a fan Unused No Wire Unused Unused No Wire Unused Unused No Wire Unused Orange Large Fuel Pump circuit This wire provides 12 volts to the fuel pump and connects to the positive side terminal No relay is required Note that on a returnless style fuel system the voltage on this wire will not display on a voltmeter Main Power Route this wire directly to Battery Positive This circuit needs to maintain power after the unit is turned off so that all Learning can be saved properly Wide Band Oxygen Sensor connection single connector Black White Black Red Green Black On Off Connect to a switched 12 volt circuit Ensure it has power during both Key On and Cranking Do NOT connect the coil terminal when using an MSD Ignition such as a 6A or 6AL or other CD ignition M SD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 10 INSTALLATION INSTRUCTIONS Do NOT connect the small Red wire to the coil terminal when using an MSD Ignition or other CD ignition control BLACK PINK FAN 2 PR2. PINK FAN 2 PROVIDES GROUND GROUND TAN FAN 1 PROVIDES GROUND BLACK GROUND HEAVY RED BATTERY HEAVY ORANGE 02 SENSOR e YL ECT SENSOR 6 T INDICATES CONNECTION TO 12V ORANGE TO AC INPUT MAG PICKUP NOT USED WHITE YELLOW NOT USED GRAY RED IGNITION SWITCHED 12V Da ORANGE WHITE IGNITION Qa HEAVY RED TO BATTERY HEAVY BLACK TO BATTERY 3 BLACK iS Y D ARN T A Orange and Black are the only wires that connect to the coil VIOLET GREEN Figure 8 Atomic Wiring with an MSD Ignition Control STOP HERE Please review the parts installed thus far Check to see that all required wires are run properly and that the fuel system is complete and secure The next section of instructions will require power to the Handheld Turning on power Key On will prime the fuel pump It is extremely important to check for fuel leaks at this time Do not attempt to start the engine until the Initial Setup has been completed on the Handheld MSD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 12 INSTALLATION INSTRUCTIONS PROGRAMMING ATOMIC CONFIGURATION The Handheld Controller is the interface between you and the Atomic EFI Using it you can go through the initial and advanced s
3. Atomic EFI PN 2900 Master Kit with Throttle Body and Fuel Pump Kit PN 2910 Throttle Body Kit ONLINE PRODUCT REGISTRATION Register your MSD Atomic EFI online and you ll be entered in our monthly 8 5mm Super Conductor Spark Plug Wire give away Registering your product will help if there is ever a warranty issue with your product and helps the MSD R amp D team create new products that you ask for Go to www msdperformance com registration Thank you for selecting the Atomic EFI throttle body conversion kit from MSD The Atomic EFI is designed to replace 4 barrel carburetors to create smoother more reliable street driving As with any performance product please be sure to read the entire instruction manual before attempting to install this system on your vehicle The MSD Customer Support phone lines are available 7am 5pm Mountain Standard Time Monday through Friday to answer any technical questions you may have in regards to installing the Atomic EFI or other MSD parts 915 855 7123 Parts Included Parts Bag With Fuel Pump Kit 1 Throttle Body w ECU 1 02 Sensor PN 2920 1 TB Harness Points 1 O2 Bung and Plug 1 Fitting 6AN 90 Ign Driver AC 4 Rubber Grommet 5 Clamps Fuel Line 1 Power Module 4 Eyelet Insert 1 Clamp Post Filter 1 PM Harness w WBO2 4 Mounting Screws 1 Self Tapping Screw 1 Handheld Monitor 1 4G Micro SD Card 1 Fuel Pump 1 Coolant Temp Sensor 4 ft CAN Extension 1 Filter Post
4. 7123 MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 eo APPENDIX A ATOMIC IGNITION TIMING CONTROL ROTOR PHASING DETAILS INSTALLATION INSTRUCTIONS ROTOR ROTOR DIST APPLICATION DISCRIPTION NEEDED RETARD NOTES NEEDED 83506 FORD R t R Marine Ford 351 460 84211 15 8517 BUICK Buick V8 Billet 400 455 84211 15 8548 BUICK Buick V8 215 350 Pro Billet 84211 15 8547 CHEVY Super Tall Block Mag Pick 8421 15 8355 CHEVY OBS Dist Chevy D PU Locked Sub w 8356 84211 15 8356 CHEVY Chevy V8 Dual Pickup 84211 15 85501 CHEVY Chevy V8 Pro Bill locked cap rotor 84211 15 85503 CHEVY Chevy V8 w Capadapt locked Shaf 84211 15 85551 CHEVY Chevy V8 Pro Billet w Cap Rotor 84211 15 85553 CHEVY Chevy V8 Mod Shafiroff 84211 15 85561 CHEVY Chevy V8 w Slip Collar Cap Rotor 84211 15 83606 CHEVY R t R Marine Chevy V8 84211 15 8534 CHRY Chrysler 318 360 84211 15 8582 FORD Ford V8 302 8421 15 8598 FORD Ford 289 302 Hyd Roller Steel Gear 8421 15 8580 FORD Ford V8 351C 460 8421 15 85805 FORD Ford 351W w Edel Vic Jr 8421 15 8584 FORD Ford V8 351W 8421 15 85840 FORD Ford 351W w Roller Stl Gear 8421 15 8569 FORD Ford 351C M 460 L P CT 84211 15 8498 GM OBS GM Ecotec 4 cylinder 8421 15 8589 HOLDEN Holden V8 308 ci engines 84211 15 8566 OLDS Oldsmobile V8 350 455 84211 15 8490 PONT OBS 151 4Cyl 8421 15 8563 PONT Pontiac V8 350 455 84211 15 2345 CHEVY Ig
5. MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 9 POWER MODULE INSTALLATION The Power Module of the Atomic EFI system handles high current circuits such as the fuel pump and WBOz2 The unit has two ports for the MSD CAN system as well as a wiring harness The CAN ports will provide communication between the Power Module Throttle Body and Handheld Controller It is important to select a proper mounting location for the Power Module The unit can be mounted in the interior or the engine compartment as long as it is away from direct heat sources It is not recommended to mount the unit in an enclosed area such as the glove box so that airflow will aid in cooling When a suitable location is found to mount the Module make sure all wires reach their connections Also be sure that the CAN ports can be accessed for use of the Handheld Use the Power Module as a template and mark the location of the holes Use a size 20 drill bit to prepare for the supplied self tapping screws Install the supplied rubber gromments and mount the unit WIRING There are anumber of electrical connections on the Power Module that are required for proper operation Other wires such as fan control wires only need to be connected if their optional functions are being used Wires marked REQ must be connected for the system to operate while those marked OPT will Bin on the Paene desired REQ OPT Description 0000000000
6. advance in ignition timing the engine should receive based on rpm Note Total timing must always be a higher number than the idle timing setting Vacuum Advance The Atomic can add ignition advance based on manifold vacuum using the built in MAP sensor Use the joystick up or down to set amount of timing advance in single degree increments Lock Timing When this section is selected the ignition timing will be locked at 15 BTDC by the computer so that the engine s idle timing can be checked with a timing light If this screen is not active the idle timing is controlled by the Atomic ECU and will be continually adjusted Note The Atomic has a feature that will retard the timing when coolant temp and intake air temp reach a certain point This is designed to protect the engine from high heat detonation INITIAL START UP AND SETTING THE TIMING Before starting the engine have a timing light handy as the first step will be positioning the distributor 1 Turn the key On to power the system and go to Advanced Setup to Ignition Timing and select Lock Timing This screen allows you to set the distributor exactly where the Atomic ECU needs it to be positioned to operate the timing 2 Startthe engine and using the timing light move the distributor to 15 BTDC Tighten the hold down clamp Note This is not actually 15 of timing Remember that the ECU is managing the timing and there is a delay through the system which is why the distribu
7. and operating conditions When the engine is at operating temperature let the engine come to an idle and monitor the IAC count This count will range from 0 175 and at idle a rule of thumb would be 10 20 with a manual transmission and 5 15 in gear with an automatic less is ok even 0 If the count is too high the IAC is trying to open too much and the blades should be opened to help with additional air flow at idle Make any adjustments equally in front and rear using small steps such as a quarter turn at a time MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 15 PRE START CHECK LIST At this point you re ready to start the engine Before attempting to start your vehicle with a newly installed Atomic EFI system MSD recommends running through the following check list to help ensure a safe and successful start e Double check all wiring Power and Ground are run directly to the battery The small Red 12V switched wire from the Power Module will have power during both Key On and Cranking The Power Module fuel pump fuel lines and wires are securely mounted away from heat sources and pinch points Wide Band Oxygen Sensor is installed in a proper location There are No known exhaust leaks Throttle linkage is complete and operational from the pedal Handheld receives power during Key On You have completed each step of the Initial Setup in the Handheld At Key On
8. fuel maps back to the factory defaults Typically this will only be done when the Atomic is being installed on a different engine Firmware Versions This is where information can be found on what is controlling the Atomic If MSD releases an update use this screen to determine which firmware is currently on the system to compare to the number of the release THROTTLE BLADE ADJUSTMENT There is one more adjustment to review prior to starting the engine for the first time the Throttle Blades This is a setting that varies between engines to improve idle characteristics due to engine and cam size There are two adjustments that determine the position of the throttle blades a front and rear see Figure 10 Note that the front and rear throttles need to be opened the same amount to produce the best idle For initial start up MSD recommends the following e On a street stock type cam turn the throttle screws 1 2 turn from the point where the blades first start to move For a mild cam turn the screws one additional turn from the point where the blades first move For Larger cams turn the screw 1 turns from the point where the blades first move Figure 10 Throttle Blade Adjustment Once started you will be able to monitor the IAC count Idle Air Control on the Handheld in the dash mode to improve or tune the idle The IAC motor controls the amount of air flowing through the idle air circuit It varies depending on the engine
9. if the pump is to be mounted in the tank Fuel line that meets SAE 30R10 specifications MUST be used Failure to do so will cause severe damage to your engine and or fuel system WARNING Improper installation or use of fuel system components can cause severe damage your engine and or fuel system that will not be covered by the manufacturer s warranty RETURN STYLE FUEL SYSTEM If you have decided that a returnless fuel system will not produce the best performance for your application you will need to route a return line in the fuel system There are many aftermarket fuel regulators available The fuel can then be routed to the sending unit of the gas tank or even the filling port of the tank This will take modification Figure 3 shows an example of a return style fuel system The most efficient system is to return the fuel from the opposite outlet of the throttle body The fuel pressure required for a return fuel system is approximately 45psi If the pressure is not enough the injectors will be over worked and an INJ DC code will appear in the Diagnostics on the Handheld If this happens increase the fuel pressure by 5 PSI increment and test again A rule of thumb is to start at approximately 60 psi for engines over 400 horsepower M SD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 6 INSTALLATION INSTRUCTIONS With a return style system you must connect the fuel lines as pictured below Connecting them like in the lower picture c
10. on a minimum and maximum fee All returns must have a Return Material Authorization RMA number issued to them before being returned To obtain an RMA number please contact MSD Customer Service at 1 888 MSD 7859 or visit our website at www msdperformance com rma to automatically obtain a number and shipping information When returning the unit for repair leave all wires at the length in which you have them installed Be sure to include a detailed account of any problems experienced and what components and accessories are installed on the vehicle The repaired unit will be returned as soon as possible using Ground shipping methods ground shipping is covered by warranty For more information call MSD at 915 855 7123 MSD technicians are available from 7 00 a m to 5 00 p m Monday Friday mountain time Limited Warranty MSD warrants this product to be free from defects in material and workmanship under its intended normal use when properly installed and purchased from an authorized MSD dealer for a period of one year from the date of the original purchase This warranty is void for any products purchased through auction websites If found to be defective as mentioned above it will be repaired or replaced at the option of MSD Any item that is covered under this warranty will be returned free of charge using Ground shipping methods This shall constitute the sole remedy of the purchaser and the sole liability of MSD To the extent permitte
11. out e An adjustable rotor is required to achieve accurate rotor phasing For standard GM size MSD distributors use rotor PN 84211 For larger Ford style MSD distributors it is recommended to fit the distributor with a smaller cap PN 8433 and the PN 8421 1 rotor If the larger cap must be used try rotor PN 8421 The balancer must be degreed or use MSD Timing Tape PN 8985 e Atiming light will be required PREPARATION FOR ATOMIC TIMING See page 17 for wiring information Before removing the distributor bring the number one cylinder to approximately 15 BTDC on the compression stroke 1 Remowve the distributor cap and note the position of the rotor You will be removing the distributor to lock it out this will be your reference position for the number one cylinder 2 Remove the distributor clamp and pull the distributor out of the engine 3 If you are using an MSD Distributor recommended follow the steps below to lock out the mechanical timing a Remove the advance components including the SPRINGS springs weights and the advance stop bushing from the advance assembly b Remove the roll pin from the drive gear and remove the gear from the housing shaft except on Fords Slide the shaft two inches out of the housing Rotate the shaft 180 and insert the advance stop bushing pin into the small hole on the advance plate Figure 11 e Install the locknut and washer to the advance stop bushing pin This locks the
12. to idle for 10 minutes at operating temperature 160 or above Allow the engine to idle at running temp This will Are there any vacuum allow self tuning to adjust leaks items as needed Ensure that there are NO vacuum leaks that could Are you sure the affect the amount of air ignition timing and in the engine rotor phasing are correct If timing is off an engine can struggle to idle regardless of the fuel system Make sure the distributor is in proper alignment Are the throttle blades adjusted for the engine See page 14 Does the idle Air Fuel The IAC can only do S0 Ratio make sense much to ensure the right amount of air gets in the engine Refer to page 14 for throttle adjustment Does the engine idle Excessive Lean or Rich well targets can make it hard for an engine to idle steady Use the Handheld to double check the target to ensure it is appropriate If each of the aforemen tioned items checks out and the rough idle issues still exists please contact MSD The engine idles well Customer Support at Go to the next page 915 855 7123 M SD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 ea INSTALLATION INSTRUCTIONS The engine is smooth idling Do you have any drivability issues Are there any exhaust leaks Even a small exhaust leak can alter the WBO2 readings If this Does the engine happens it will have a dramatic struggle to keep effect on the engine s up durin
13. 57 FORD Roush Ford 351W Vacuum Advance 84211 15 Keep Vacuum Canister in place 8479 FORD Ford 289 302 VacuumAdvance 84211 15 Keep Vacuum Canister in place 8386 CHRY Chry 383 400 R t R 84211 15 Keep Vacuum Canister in place 8387 CHRY Chry 440 426 R t R 84211 15 Keep Vacuum Canister in place 8350 FORD Ford 351C 460 R t R 84211 15 Keep Vacuum Canister in place 83501 FORD Ford 351C 460 R t R Stl Gr 84211 15 Keep Vacuum Canister in place 8352 FORD Ford 289 302 R t R 84211 15 Keep Vacuum Canister in place 83521 FORD Ford 289 302 R t R Stl Gr 84211 15 Keep Vacuum Canister in place MSD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 ee INSTALLATION INSTRUCTIONS ROTOR ROTOR DIST APPLICATION DISCRIPTION NEEDED RETARD NOTES NEEDED 8352EDEL FORD Ford 289 302 R t R EDEL 84211 15 Keep Vacuum Canister in place 8354 FORD Ford 351W R t R 84211 15 Keep Vacuum Canister in place 83541 FORD Ford 351W R t R Steel Ger 84211 15 Keep Vacuum Canister in place 8383 FORD R t R Ford Y Block 84211 15 Keep Vacuum Canister in place 8595 FORD R t R Ford FE 84211 15 Keep Vacuum Canister in place 8523 AMC R t R AMC V8 84211 15 Remove Vacuum Canister and lockout advance 8519 AMC AMC V8 Engines 84211 15 Remove Vacuum Canister and lockout advance 8524 BUICK R t R Buick Nailhead 84211 15 Remove Vacuum Canister and lockout advance 8552 BUICK R t R Buick 455 V8 84211 15 Remove Vacuum Canister and lockou
14. Air Filter Gasket 15 ft Fuel Line Intake Manifold Gasket 2 ft Black Wire 1 Fitting 6AN Adapter 6 Male 14g Ring Lug Note The Atomic EFI requires an isolated 12 volt square wave signal to trigger the injection An MSD Ready to Run Distributor with tach output lead or a CD ignition such as an MSD 6 Series Igni tion Control CAPABILITIES The Atomic EFI throttle body fits a standard square bore intake manifold flange If your intake manifold does not currently match this description adapters and or intakes are available for most popular engines The Atomic EFI Master Kit PN 2900 is capable of supplying fuel to engines with 100 525 HP at the crank If your engine makes less than 100 horsepower there may be idle issues as the system will struggle to compensate for such small needs If your engine makes more than 525 horsepower this system could limit the engine due to fuel starvation For engines producing 525 625 horsepower MSD offers a fuel system upgrade that will support the additional needs of such engines The Atomic EFI is a self tuning fuel system that continuously adjusts after the basic configuration is complete There is no laptop programming Based on the engine descriptors you input the Atomic will automatically create a base fuel map to get the engine running Once running the self learning system will adjust those maps to get the engine exactly where you want it If you change altitude outside temperature or other factors th
15. CTORY NS FRONT THROTTLE ADJUSTMENT 4 w Es La M 2 Y Pies 1 5 AAs ores DU pe l ON LUBE HOSE amp FITTING BEFORE PUSHING ON Figure 6 Installing Fuel Hose to the Push Lock Fittings 857 3344 315 857 5200 R INSTALLATION INSTRUCTIONS VACUUM PORTS Before installing the throttle body note the engine s need for vacuum accessories The Atomic has five vacuum ports ported and manifold to cover accessories such as a power brake booster Figure 4 THROTTLE BLADE ADJUSTMENTS Note that there are three adjustment screws on the linkage Figure 5 One adjusts the opening of the front throttle blades to assist with idle and tip in The rear blades also have a similar adjustment These may require adjustment depending on your engine Page 14 has more information on adjusting the throttle blades on initial start up There is one more adjustment that controls the front and rear throttle blades opening at the same time This is set at the factory but each application may require slight adjustments to receive the best driveability INSTALLATION 1 Install the new gasket and place the throttle body on the intake manifold Make sure the throttle body is square on the intake and the linkage moves through closed throttle to wide open 2 Secure the throttle body by tightening the four retainers evenly Do not over tighten 3 Transfer th
16. Hold Down Screw INSTALL THE ADJUSTABLE ROTOR 1 Install the new adjustable rotor MSD PN 8421 1 or PN 8421 2 Set the phasing of the adjustable rotor based on the information below POSITION ON BASE AND ROTATE INTO POSITION Figure 13 Two Piece Rotor PN 84211 ROTOR PHASING To phase your rotor properly for the Atomic EFI to control ignition timing set it retarded opposite rotation at 15 on the rotor indicator Remove and lockout the vacuum advance if applicable on all distributors except Fords Distributor PN 8573 will need the vacuum canister removed and locked out Distributors PN 8386 and 8387 keep the vacuum canister in place Please see Appendix A for a complete list of our distributors the required adjustable rotor and other applicable notes INSTALL THE DISTRIBUTOR 1 Position the engine at 15 Before Top Dead Center BTDC 2 Install the distributor making sure the rotor comes to rest pointing at the number one terminal of the distributor cap Tighten the distributor clamp but leave it so the distributor can be moved Connect the distributor s magnetic pickup to the matching connector on the throttle body Connect the Yellow wire of the Atomic to the White input wire on the MSD Ignition Control This is the trigger signal for the ignition 6 Install the cap and spark plug wires c1 amp Idle RPM Set this to the rpm at which you would like the Atomic to start advancing ignition tim
17. OVIDES GROUND GROUND TAN FAN 1 PROVIDES GROUND BLACK GROUND HEAVY RED BATTERY HEAVY ORANGE O02 SENSOR ECT SENSOR KEY CONNECTOR SWITCHED 12V USE A MINIMUM 12 GAUGE WIRE Fi 2 ORANGE AC INPUT YELLOW IGNITION OUTPUT USED WITH INDICATES CONNECTION TIMING CONTROL ONLY tn MAG NOT USED FOR TIMING CONTROL ONLY OPTIONAL HIGH VOLTAGE WHITE TO MSD TACH SIGNAL TACH OUTPUT GRAY RED IGNITION SWITCHED 12V 0 R GRAY TO TACH INPUT ORANGE RED O ORANGE F 9 RED BLACK TO GROUND ISL lt pis yx Figure 7 Atomic Wiring with an MSD Ready to Run Distributor or MSD HEI Distributor STOP HERE Please review the parts installed thus far Check to see that all required wires are run properly and that the fuel system is complete and secure The next section of instructions will require power to the Handheld Turning on power Key On will prime the fuel pump It is extremely important to check for fuel leaks at this time Do not attempt to start the engine until the Initial Setup has been completed on the Handheld MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 11 Do NOT connect the small Red wire to the coil terminal when using an MSD Ignition or other CD ignition control BLACK
18. X 915 857 3344 INSTALLATION INSTRUCTIONS Has the engine been allowed to idle for at Yes Is the Atomic EFI controlling the engine s ignition timing Please review the instructions for setting and controlling ignition timing with the Atomic EFI See pages 15 17 Continue Has the throttle been Refer to page 14 of the instructions to ensure the throttle is set for your engine Refer to page 13 to learn how to correct and clear codes e FAX 9315 857 3344 857 5200 The engine starts Is it hard starting Is this the first time you have started the engine Let the engine run for at least 10 minutes Then shut it off and start it again least 10 minutes Letting the engine run at temperature for 10 minutes will allow the system to start learning adjusted Does the Handheld show any errors Does the system maintain fuel pressure during cranking idling Refer to pages 4 6 for instructions on the Fuel System It must be able to maintain pressure at all times Is the engine hard starting If each of the aforementioned items checks out and the hard starting issue still exists please contact MSD Customer Support at 915 855 7123 WWW MSDPERFORMANCE COM 9815 The engine is easy starting Go to the next page MS D INSTALLATION INSTRUCTIONS 23 The engine is easy starting Does it idle well Has the engine had the chance
19. advance in place f Put the shaft back in the housing g Install the drive gear and roll pin 4 Some applications will require the vacuum advance be removed Please see page 16 for details or Appendix A for a complete list of distributors If your vacuum advance needs removed and locked out Figure 11 Locking Out the Advance use the following steps a Remove the two Allen head screws that hold the advance canister Figure 12 b Remove the snap ring that holds the magnetic pickup assembly in place c Gently lift up on the mag pickup plate and slide the vacuum canister out d Install the Lockout Plate in place of the canister Install the two retaining screws MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 TURN SHAFT 180 WEIGHTS 00 INSTALLATION INSTRUCTIONS 17 6 Install the supplied screw and washer through ae the Lockout and tighten PADDLES f It is important to make sure the pickup plate is parallel with the housing of the distributor Figure 12 If it is cocked or slanted the paddles of the reluctor may contact the pickup LOCKOUT SCREW WASHER g MAG PICK UP g Check the clearance by rotating the distributor ff IF NECESSARY i MAG PICK UP PLATE shaft If necessary use the supplied shims SS AND HOUSING MUST under the Lockout hold down to correctly sea eee position the pickup plate Note If no shims were required use one beneath the washer of the Lock Out
20. an cause fluid hammer inside of the throttle body on transient operations This will cause hesitations and possibly dead zones at certain RPM ranges CORRECT FOR RETURN STYLE FUEL SYSTEM REGULATOR FUEL TANK ADJUSTABLE NOTE Do not use tubing hard fuel lines with the Atomic EFI system INCORRECT AFTERMARKET ADJUSTABLE REGULATOR FUEL TANK Figure 3 Atomic Return Style Fuel System THROTTLE BODY Parts Required not included 4 Retaining Stud Kit for the throttle body Throttle linkage connection brackets The Atomic Throttle Body will bolt in place on intake manifolds designed for a square bore style carburetor is designed to accept common throttle linkage adapters and brackets A throttle ball stud is supplied but no other linkage components are included Accessory kits are available through many accessory or carburetor companies There are two fuel inlets a forward and rear fuel inlet Only one needs to be connected on a PWM style system as fuel is delivered to either side through an internal fuel rail The passenger side of throttle body where the MSD is machined is the Electronic Control Unit ECU This is the brains of the Atomic fuel system and where all of the fuel calculations are made to give your vehicle exceptional performance MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 N ip sa SYNC MANIFOLD t E R r re ie E I a A 0 SET AT FA
21. d by law the foregoing is exclusive and in lieu of all other warranties or representation whether expressed or implied including any implied warranty of merchantability or fitness In no event shall MSD or its suppliers be liable for special or consequential damages Intended normal use means that this item is being used as was originally intended and for the original application as sold by MSD Any modifications to this item or if it is used on an application other than what MSD markets the product the warranty will be void It is the sole responsibility of the customer to determine that this item will work for the application they are intending MSD will accept no liability for custom applications MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 2012 Autotronic Controls Corporation FRM30903 Revised 06 12 Printed in U S A
22. d fan A relay is required for each fan A F Targets To help get the engine running perfect Atomic allows you to set three Air Fuel Ratio Targets Idle Cruising and Wide Open Throttle The Atomic will automatically adjust maps with its Self Learning capabilities to match the prescribed targets Use the joystick to move each A F Target up or down in 0 1 increments Fan Control Remember Higher A F results in a leaner burn Lower A F results in a richer burn Timing Control The Atomic EFI system has the ability to control the engine s ignition timing however an MSD Ignition Control and distributor are required to use this feature For initial startup it is recommended to bypass the Atomic s timing control features This will allow you to start the engine and tune the EFI to your engine For more details and complete instructions for Timing Control please see page 16 of these instructions Air Fuel Targets Pump Squirt To assist in throttle transitions the Atomic EFI has a feature to mimic the pump squirt of a carburetor This works by increasing fuel delivery by a prescribed percentage any time there is an increase in throttle position If needed make small changes of no more than 5 increments without further testing 25 is sufficient for most engines Almost all vehicles will use between 15 and 3596 pump squirt Power Valve Enrich To assist in manifold pressure transitions the Atomic EFI has a power valve feature This works b
23. e Atomic will adjust accordingly on the fly This feature ensures that your engine will have the right fuel mixture at all times even if you drive from the sunny coast to the cold mountains M SD wWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 e INSTALLATION INSTRUCTIONS Another unique capability of the Atomic EFI system is the integrated timing control For users that want to get the best performance from this system MSD suggests allowing the Atomic to control the engine s ignition timing When using this option you control total timing and when timing comes in but the Atomic can make dynamic timing adjustments at low engine speed to help with easier starts and smoother idle To use the timing feature the distributor will need to be locked out and an adjustable rotor is required as well as an MSD Ignition Control See pages 15 for details LIMITATIONS There are several limitations to the Atomic EFI that should be kept in mind for optimum operation of the system The Atomic EFI is not suitable for diesel rotary or odd fire V6 engines At this time users should not install the Atomic on applications that use the following features Power adders including super chargers turbos and nitrous systems dual quad intakes or alternative fuels including E 85 alcohol LPG and others Please check AtomicEFl com for possible updates that might allow for such features in the future SELECTING A RETURN OR RETURNLESS FUEL SYSTEM The At
24. e linkage hardware from the carburetor to the Atomic Any transmission brackets should also be transferred to the Atomic A throttle return spring must be used 4 Install the new air horn gasket 5 Determine which fuel inlet and an fitting best suits your application 6 MSD supplies two 6 AN style fittings for use on the throttle body fuel inlet Both use push lock style inlets to connect to the fuel hose and do not require clamps Determine whether the 90 or straight fitting is best for your application and install the hose by pushing it all the way flush on the fitting A dish soap solution will help with the installation Figure 6 Note Do not use clamps on these fittings as it could damage the hose Note Not all fuel lines are rated for push lock installation 7 Install the fitting to the throttle body MSD WWW ATOMICEFI COM 915 8 INSTALLATION INSTRUCTIONS WIRING There are several wires and connectors on the throttle body Not all of these wires will be connected on every application Following is a chart of each wire REQ This is the tach input wire for the EFI It connects to the tach output of an MSD Ignition Control or Ready to Run distributor to supply an RPM signal Note This wire is not used when the magnetic pickup wire is being used for ignition timing OPTIONAL Yellow This is a tach output wire Connect this wire to the White points used with input wire on an MSD ignition unit only when usin
25. een remediated within the last ten ignition cycles The following chart gives the most likely solution s to each possible error CLEARING HISTORY ERRORS There are two ways to clear an error First the code will erase after 10 key cycles Second is to simply navigate to the message screen and push the joystick down to clear the codes CODE NAME WHAT IT MEANS PROBABLE CORRECTION S TPS The sensor may be at fault Note that the TPS is integral of the throttle body The sensor maybe at fault Note that the MAP sensor is integral of the throttle body The sensor may be at fault Note that the IAT sensor is integral of the throttle body Check to see that the sensor is properly installed and plugged in If the sensor is connected but there is no signal it will need to be replaced Check that the Atomic has power and ground directly from the battery Also be sure the vehicle s battery and charging system are in proper working order you are running 8 returnless fuel system your en gine s needs may exceed the Atomic s maximum capa bilities If you are running a return system check to see that you are maintaining the recommended fuel pres sure If you have adequate fuel pressure the engine needs may exceed the Atomic s system capabilities There is no reading for the Throttle Position Sensor MAP here is no reading for the Manifold Air Pressure Sensor IAT There is no reading for the Inlet Air Temp
26. el system for the Atomic EFI Note Do not use tubing hard fuel lines with the Atomic EFI system WARNING When working on the fuel line system of a vehicle it is important to adhere to safety values All fuel should be drained into approved carriers Always secure the vehicle on jack stands on a flat surface do not smoke or have open flames in the vicinity RETURNLESS SYSTEM INSTALLATION The PN 2920 Fuel Pump Kit is designed to be used as a returnless fuel system This means a return line to the tank is not required so there are no modifications required to the tank or sending unit CORRECT RETURNLESS PWM INSTALLATION FUEL TANK FUEL NOTE Do not use tubing hard fuel lines with the Atomic EFI system Figure 2 Atomic Returnless Fuel System It is important to note that a returnless fuel system does have limitations depending on the application and other variables A returnless fuel injection system is NOT meant to be a solution for fuel vapor lock on a carburetor In fact a returnless fuel system is just as susceptible to vapor lock as a carburetor Other items that can affect performance include the fuel octane used ambient temperatures and pump location If fuel vapor lock has been an issue on your vehicle in the past then it is recommended to use a return style fuel system The Atomic EFI can be configured for both fuel systems and to run a return system a regulator is required To help determine which fuel system i
27. erature Sensor The ECU will default to 275 when open There is no reading for the Engine Coolant Temperature Sensor The ECU will default to 275 when open The Atomic is receiving the wrong voltage The unit is measuring either less than 9 volts or greater than 16 volts Excessive Injector Duty Cycle FUEL PRESSURE There is no reading for the Fuel The sensor will need to be replaced Pressure Sensor A Check to see that the sensor is securely plugged into the system B The sensor will need to be replaced This means you need to review your fuel pump system and confirm that your application meets the requirements to run a returnless PWM system Also check the filters the sock in the tank and inspect the lines for any kinks or pinches that would affect the fuel flow and pressure of the system If everything checks okay and the code continues you may need to move to an in tank pump or use a regulated return fuel system A NOT CONNECTED indicates that no sensor is detected B ERROR indicates that the sen sor has failed WBO2 FP CAV CLEAR FLOOD This code will set if there is an issue with Fuel Pump Cavitation similar to vapor lock It can only set when running a returnless fuel system This may occur when the commanded fuel pressure from the ECU is different than the fuel pressure at the sending unit If a flood condition occurs turn the key on then press the accelerator to wide open thro
28. etups monitor engine parameters in real time and more To power the Handheld for use turn on ignition power Key On All basic functions for the Handheld are done through the joystick which allows for up down left and right control as well as center pressing to input a change ATOMIC EFI DASH The dash does not have any selectable editable features Instead it offers real time data on all that is happening within your engine Use the joystick to scroll up and down This will be helpful in your initial startup and tuning INITIAL SETUP Before starting the engine you will need to input a few engine parameters Initial Setup Engine Displacement Select your engine size Use the joystick to go up or down in 1 cubic inch or 0 1 liter increments Number of Cylinders Select the number of cylinders Use the joystick to go up or down with 1 2 4 6 8 or 12 cylinders Atomic EFI is not compatible with Odd Fire V6 egnines Fuel Return Select either a returnless fuel system or a return fuel line with a regulator Pulse width modulated is for a returnless system Idle RPM Target Select the RPM at which the engine should idle Use joystick to move the rpm up or down in 25 rpm Fuel System increments Rev Limit Select the RPM at which the engine should be rev limited Use joystick to move the rpm up or down in 25 rpm increments The rev limit is controlled through fuel shut off Timing Control Choose between Enabled and Disabled I
29. f Timing Control is Enabled its features will be edited in the Advanced Setup Please see page 16 for more details on this option Note It is recommended to start the engine initially without timing control Camshaft Selection There are three selections Street Stock Idle RPM Mild and Performance Select the cam that best suits your application CAM DURATION AT 050 Less than 210 Greater than 231 250 Note If lobe separation angle LSA is less than 108 you Camshaft Type may need to go to next larger cam profile If cam duration is longer than 250 the Atomic will not be Figure 8 Initial Setup suitable for your application MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 13 ADVANCED SETUP Each of the settings in the Advanced Setup is optional None of them are required to be edited at any time if they are not needed by your particular application They are each designed to offer additional functionality to be used at your choice For initial start it is recommended to leave the defualt settings Fan Control Use the Atomic to control two electric fan circuits Each circuit can be turned on by selecting a start temperature using the joystick to go up or down in single degree increments The fans will automatically Advanced Setup shut off when the engine reaches 10 cooler than the start temperature The two circuits can be used for independent fans or a single multispee
30. g the Atomic timing to control timing If the Atomic is not controlling timing this wire control can be used as a 12 volt square wave trigger to a tachometer OPTIONAL Orange This is an AC kick up wire When 12 volts are supplied to this wire used with it will provide a small rom kick up in the idle to compesate for an A C added load to the engine from the air conditioner compressor OPTIONAL Violet This is the input for a magnetic pickup such as from an MSD used with Green distributor This connector is only used when the Atomic is timing controlling ignition timing control The 6 pin connector must connect to the Power Module Do NOT cut this harness MSD offers extensions in 2 4 and 6 feet lengths if needed EXTERNAL SENSORS There are only two external sensors that need to be installed and connected the Wide Band Oxygen Sensor and the Engine Coolant Temperature Sensor Both are supplied The Wide Band Oxygen Sensor installation is covered at length in a previous section of these instructions The coolant sensor is a variable resistance sensor and needs to be installed in the engine 1 Find a location for the coolant temperature sensor Many engines have provisions on the cylinder heads or the intake manifold 2 It is recommended to use a small amount of Teflon tape or sealer on the threads 3 Locate the 2 pin coolant sensor wiring harness Route and connect the harness to the coolant temperature sensor MSD WWW
31. g throttle performance Always ensure increases thre are NO leaks in the exhaust When there is an increase in throttle position the engine can require extra fuel that isn t accounted for in the regular fuel maps See page 12 to learn how we solve this issue with the Pump Squirt feature of the Atomic Do the Air Fuel Ratio Targets make sense Does the Atomic The Atomic is designed to EFI maintain always hit the designated adequate fuel Air Fuel Ratio Targets If pressure these targets are much too low or high for an engine it will run poorly Check to ensure the targets make sense for your engine Check to see that the fuel Are you sure the system is maintaining ignition timing and pressure If the Atomic rotor phasing are looses fuel pressure for correct any reason it will cause the engine to run poorly If timing is off an engine Has the Atomic can struggle to idle EFI had time to regardless of the fuel learn all the parts system Make sure the of your fuel maps distributor is in proper alignment Do you have The Atomic needs run time in drivability each area of the fuel maps to issues learn the best settings for your engine It could take up to a week of normal daily driving to adjust all the maps Your engine If each of the aforemen starts idles and tioned items checks out drives well Enjoy and the poor drivability the Atomic EFI issue still exists please contact MSD Customer Support at 915 855
32. ing off idle Total RPM This is the rom at which the Atomic should have full ignition timing M SD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 18 INSTALLATION INSTRUCTIONS Do NOT connect the small Red wire to the coil terminal when using an MSD Ignition or other CD ignition control BLACK PINK FAN 2 PROVIDES GROUND GROUND TAN FAN 1 PROVIDES GROUND MSD POWER MODULE BLACK GROUND HEAVY RED BATTERY HEAVY ORANGE 02 SENSOR SENSOR IGNITION KEY WHITE NOT USED ORANGE TO AC INPUT RED IGNITION SWITCHED 12V GRAY TACH OUTPUT 0 IGNITION e e p ORANGE HEAVY RED TO BATTERY HEAVY BLACK TO BATTERY ONLY USED WITH ii TIMING CONTROL CONNECTS MSD DISTRIBUTOR PICKUP C Orange and Black are the only wires that connect to the coil BLACK VIOLET GREEN MAG PICKUP NOT USED Figure 14 Atomic Wiring to use Timing Control MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 19 SETTING THE ATOMIC TIMING Connect the Handheld Control and select Ignition Timing from the Advanced Menu Idle Advance This is the initial ignition timing from which timing will advance as the engine climbs in rpm Total Advance This is the total
33. ly understood for the installation process prior to starting the conversion WIDE BAND OXYGEN SENSOR INSTALLATION The MSD Atomic EFI system requires a single Wide Band Oxygen Sensor WBO2 for operation MSD suggests that the bung for this sensor be installed prior to starting any other part of the conversion process By having the WBO2 in place first there is a reduced chance of the vehicle being immobilized for an extended time The bung for the WBO2 provided by MSD has a plug included so that the vehicle can be driven between the time of exhaust modification and installing the rest of the Atomic system if needed The WBO2 can be installed in the exhaust of either exhaust bank The bung should be installed by a qualified exhaust technician and pressure tested Proper installation of the oxygen sensor is critical to the performance of the Atomic EFI Improper installation could lead to engine damage 1 Locate the ideal spot to install the 2 a This location should be 2 4 inches after the exhaust collector The sensor must be more than 18 inches forward of the exhaust tip For applications where short or open headers are 02 SENSOR used install the WBO2 in the primary tube of the rear cylinder at least 8 inches away from the exhaust port The Atomic will not work on POSITION Zoomie style headers AT LEAST b The WBO2 sensor should be at least 10 above horizontal to allow condensation runoff Without this angle the sensor is significantly m
34. n Trigger Sync Signal Lock Out 84211 15 23451 CHEVY Ign Trig w Hall LED Sync Pickup 84211 15 23451EDEL CHEVY Ign Trg w LED Sync Pckup amp LD Cap 84211 15 2357 CHEVY Cam Sync w Rotor Phasing Chevy V8 84211 15 8570 CHEVY Chevy V8 Small Cap Base 84211 15 8545 CHRY Chrysler 383 400 Pro Billet 84211 15 8546 CHRY Chrysler 426 440 84211 15 2358 FORD Sync Rotor Phas 289 302 Steel Ger 84211 15 2358EDEL FORD Cam Sync Ford 289 302 Steel Gear 84211 15 2358ROUSH FORD Sync Rotor Phasing 289 302 Roush 84211 15 2359 FORD Sync Rotor Phas 289 302 Cast Ger 84211 15 2360 FORD Sync Rotor Phas 289 302 Bronze Gr 84211 15 8579 FORD Ford 302 Pro Billet Small Cap 84211 15 2362 FORD Sync Rotor Phas 351W Steel Gear 84211 15 2362EDEL FORD Cam Sync Ford 351W Steel Gear 84211 15 2362ROUSH FORD Sync Rotor Phasing 351W Roush 84211 15 2363 FORD Sync Rotor Phasing Ford FE Roush 84211 15 2363ROUSH FORD Sync Rotor Phasing Ford FE Roush 84211 15 8577 FORD Ford 351C 460 ProBillet Small Cap 84211 15 8578 FORD Ford 351W Pro Billet Small Cap 84211 15 2356EDEL PONT Pontiac Cam Sync w Hall Effect P U 84211 15 8394 CHEVY GM Digital E Curve 84211 15 8504 CHRY Chry 318 340 360 E Curve 84211 15 8503 FORD Ford 289 302 E Curve 84211 15 8477 FORD Ford 351C 460 Vac Advance 84211 15 Keep Vacuum Canister in place 8478 FORD Ford 351W Vacuum Advance 84211 15 Keep Vacuum Canister in place 84783009
35. omic EFI has the option of working as either a return or returnless style fuel system While many users will have the option to choose whether or not to install a return fuel line there are a number of factors that need to be considered in making the decision Using the chart below consider the conditions under which the vehicle with Atomic EFI will be used on a regular basis For best results always plan for the worst case scenario in this case the hottest daytime temperatures where you will drive the vehicle using the lowest grade gasoline you will purchase After taking all sections into consideration at least five points should be accumulated to ensure reliable drivability with a returnless style fuel system 0 81 F or greater 71 80 F 2 Daytime Temperatures 61 70 F 3 60 F or lower 4 Low less than 89 octane 0 Quality of Fuel Medium 89 90 octane 1 T 1 Fuel Pump Location 2 A minimum of 5 points is recommended to use a returnless fuel system eee EXTENSION HARNESSES MSD offers three different length extension harnesses for the Handheld Controller or Power Module 2 feet PN 7782 4 feet PN 7784 and 6 feet PN 7786 MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 3 INSTALLATION The following is a step by step instruction on the installation of an Atomic EFI on most vehicles Please be sure that the instructions are ful
36. ore likely to sustain water damage c Never place a WBO on the outside of a bend d The WBO2 must be mounted in the exhaust Figure 1 WBO2 Sensor Location prior to any catalytic converter if applicable 2 Drill a 7 8 hole in the exhaust where the WBO2 will go 3 Weld in the supplied bung Ensure the weld goes completely around the bung and is air tight 4 Insert supplied plug in bung Never run the vehicle with a WBO2 installed but not powered it will damage the sensor 5 When completing the Atomic EFI installation remove the plug and insert the WBO2 for use MSD suggests using a small amount of anti seize on the threads EXHAUST Note The Atomic EFI is extremely sensitive to air leaks in the exhaust system Any air leak between the engine and the WBO2 will cause the Atomic to have false readings which can lead to poor engine performance misfires and an inability to properly auto tune Extended running of the Atomic EFI with an exhaust leak can result in detonation and severe engine damage Improper installation of the oxygen sensor and any damage that may result from such an installation is not covered by the manufacturer s warranty M SD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS FUEL SYSTEM INSTALLATION The Atomic Master Kit PN 2900 is supplied with the Returnless Fuel Pump Kit PN 2920 This Fuel Kit includes an inline pump and the components to complete a returnless fu
37. pump and sending unit 4 Install the fuel filter Find a suitable location for the supplied fuel filter This filter is required to mount between the fuel pump and the throttle body Both the pump and the filter incorporate 3 8 beaded inlet outlets Use the supplied clamp to position and mount the filter with the supplied self tapping screw Note Many carbureted fuel tanks have 5 16 diameter supply line The Atomic EFI requires a 3 8 diameter supply line Fuel line size mismatching will cause fuel vapor lock even if your vehicle qualifies for returnless using the points system described previously 5 Connect the supplied fuel hose from the pump to the filter using the supplied clamps 6 Determine if the fuel line is going to be routed to the front or rear port on the throttle body Route the hose to the inlet port making sure to secure it to the frame and away from heat sources and suspension components IN TANK MOUNT The MSD pump can be used in the tank however it would require a sock or filter element on the pickup side It is important to note that the wiring used to run the pump will need to meet requirements to be submersed in fuel When wiring an in tank pump it is recommended to use a wire that conforms to SAE specifications J1128 and J378 This wiring features a Thermoplastic insulated wiring with polyvinyl chloride insulation for protection against gasoline oil and more In addition different fuel line will be required internally
38. s best for your application review the chart on page 2 to determine if your application is best suited for a return or returnless fuel system The same pump is used for a return system however a regulator will be required to set the pressure and route the excess fuel back to the tank A complete kit with the regulator and extra hose is offered In this section we will cover the installation for a returnless fuel system MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 5 MOUNTING THE FUEL PUMP 1 Itis recommended to mount the pump close to the gas tank and in a position that is below the lowest point of the tank Once a suitable location is found mark the position of the mounting bracket holes Use a 20 bit to drill the holes and secure with the supplied self tapping screws Note Pay attention to the direction of the pump There is an arrow pointing towards the flow of the fuel 2 Mount the pump At this point it is recommended to connect the negative fuel pump wire directly to ground Make sure the ground point is bare metal for a proper connection Mount the pump so you have access to the positive terminal 3 Connect the fuel hose from the sending unit to the pump When connecting the new fuel line to the sending unit in the tank make sure to route the fuel hose away from any suspension exhaust or moving driveline components Use the fuel line hose clamps supplied to secure the hose to the
39. t advance 8360 CHEVY Chevy V8 w Internal Module 84211 15 Remove Vacuum Canister and lockout advance 83602 CHEVY Chevy w Int Module wo Vac Advance 84211 15 Remove Vacuum Canister and lockout advance 8360EDEL CHEVY Chevy V8 R t R Edelbrock Crate 84211 15 Remove Vacuum Canister and lockout advance 8393 CHEVY Chevy 348 409 R t R 84211 15 Remove Vacuum Canister and lockout advance 8361 CHEVY Chevy V8 Billet w Vacuum Adv 84211 15 Remove Vacuum Canister and lockout advance 8363 CHEVY Cadillac V8 w Vacuum Advance 84211 15 Remove Vacuum Canister and lockout advance 8388 CHRY Chry 440 426 R t R 84211 15 Remove Vacuum Canister and lockout advance 8389 CHRY R t R Chry 84211 15 Remove Vacuum Canister and lockout advance 8391 CHRY R t R Chrysler 331 84211 15 Remove Vacuum Canister and lockout advance 8573 FORD Flathead Ford R t R 49 53 84211 15 Remove Vacuum Canister and lockout advance 85891 HOLDEN Holden R t R V8 308 84211 15 Remove Vacuum Canister and lockout advance MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 27 TECH NOTES M SD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 Service In case of malfunction this MSD component will be repaired free of charge according to the terms of the warranty When returning MSD components for warranty service Proof of Purchase must be supplied for verification After the warranty period has expired repair service is based
40. the fuel pump primes There are No fuel leaks when system is under pressure Check for proper fuel pressure on Handheld Dash If you do not see fuel pressure you may need to prime the pump more than once e When ready to start engine watch for Engine RPM on Handheld Dash to know that Atomic is getting proper input Timing feature is disabled unless using timing feature Be prepared to adjust the throttle blades as shown on page 14 START YOUR ATOMIC FUELED ENGINE M SD wWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 16 INSTALLATION INSTRUCTIONS ATOMIC EFI TIMING CONTROL The Atomic EFI has the ability to control the engines ignition timing This is an optional feature and is NOT required for proper functioning of the fuel injection By implementing ignition timing control through the Atomic EFI the engine will have more precise control and an improved idle MSD recommends that those who wish to use the Atomic s timing control feature first get the engine to run without timing control Splitting the timing control into a secondary process will add very little time to the total install but could significantly help with trouble shooting should it be needed The following are a list of items that are required to use the timing features of the Atomic system e An MSD Ignition control such as a 6A or 6AL Ignition e An MSD Pro Billet Distributor with a 2 pin mag pickup connector The distributor must be locked
41. tor was installed at 35 45 BTDC Positioning the distributor at 15 while in Lock Timing mode provides the correct position to achieve your selected timing values 3 Leave the Lock Timing screen This will take you back to the Ignition Timing screen and the Atomic will now be controlling the ignition timing It is important to note that you will not see accurate timing at idle speed when viewing with a timing light This is due to ECU calculations If you rev the engine off idle the timing will appear correctly Figure 15 Timing Settings 4 Once back to the Ignition Timing Screen you can adjust the total and idle timing as well as the rpm points that control the rate of the advance 5 here is also a vacuum advance option on the handheld Vacuum advance is generally a feature that assists in economy The Atomic allows you to select a total amount of vacuum advance This will take some time to tune to depending on your application Note that the vacuum advance reads off ported vacuum so it will not come in until the throttle is open M SD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS 20 DIAGNOSTICS There is a self diagnosing system built into the Atomic EFI Each covered parameter can show a status in one of three ways OK the parameter is functioning normally Error C there is currently an error occurring Error H there was previously an error that has b
42. ttle This tells the ECU to turn off the injectors Crank the engine to clear the flood condition until the engine starts release the throttle open start up Note The TPS is self calibrating so the key must be in the On position prior to pressing the accelerator MSD WWW MSDPERFORMANCE COM 915 857 5200 FAX 915 857 3344 INSTALLATION INSTRUCTIONS e MSD Atomic EFI Trouble Shooting Does the engine start Have you completed the Pre Start Checklist in the Atomic instructions Please check Did the system all of the show proper items on that Fuel list before Pressure continuing Please check for power to Did the system the fuel pump show an RPM or other fuel signal during Issues cranking Please check to Did that RPM see the Atomic signal correlate is getting a to the actual proper trigger engine speed signal from the distributor or Is it possible Please check to ignition box that the engine see the Atomic is flooded is getting a proper trigger signal from the distributor or Please follow ignition box the Flood Clear Does the directions on engine have page 13 spark Check the If each of the ignition system aforementioned items to ensure checks out and the proper non start issue still exists functioning Please contact MSD Customer Support at 915 855 7123 Does the engine start the next page Yes No Engine starts Go to MSD WWW ATOMICEFI COM 915 857 5200 FA
43. y Timing Control adding fuel based on MAP transitions while moving the throttle Large cam vehicles with low vacuum generally required a slightly smaller number while stock small camshaft vehicles with a high vacuum may require more If needed make small changes of no more than 596 increments without further testing 2596 is sufficient for most engines but between 15 35 is normal Typically the higher the vacuum more stock the higher the percentage needed Pump Squirt Figure 9 Advanced Setup M SD WWW ATOMICEFI COM 915 857 5200 FAX 915 857 3344 14 INSTALLATION INSTRUCTIONS DISPLAY OPTIONS Using the features in this section users will be able to control the look of the Handheld unit This section is also home to information regarding the Firmware and resets LCD Contrast Adjust the contrast on the LCD screen if it is hard to see the display Brightness is adjusted using the joystick to go up or down in five percentage increments Backlight Level The brightness of the screen is determined by this setting The Backlight Level may need to be adjusted depending on outside light levels Brightness is adjusted using the joystick to go up or down in five percentage increments Display Units The Atomic can display items in either English cubic inches Fahrenheit or Metric liters Celsius Set Atomic Defaults Use this feature to reset the Atomic EFI Selecting YES on this screen will take all setting including
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