Knock - PDXTuning.com
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1. f Long Term is not stable your gt 03 TPS AFR will never be stable gt Maybe too rich or maybe too LEAN e Short Term always goes to O over 63 TPS PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning The End Thank you PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning2. Which is a good thing eP gt PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Map Tuning Fuel Timing Boost Parameters PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Fuel Tuning Information applicable to classic MAF modification in 3 1 and 4 1 mode and Open Loop Fueling mode PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Know your MAP based load points e Settings found in Column SPECIAL 10 00 20 CONSTANTS menu 30 40 60 Defined as 1 4090 60 80 e Min PSI 0 default 500 80 100 Max PSI 18 default XU Modify Max PSI setting to your desired PSI NG T JH di eO This will effect your fuel tuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Caution When Fuel Tuning PDXTuning PDXTuning If in doubt go RICH But not too rich as that will cause misfire PDXTuning PDXTuning PDXTuning PD
3. Bigger boost spike Boost Gain related Spike e 45 can yield 1 psi spike Target Max Boost NLS Higher Boost Gain Values e Slower Boost Ramp up e Smaller boost spikes e 50 yields 0 psi spike e Caution Boost Gain effects MAX boost value use 45 PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning UTEC Parameters e Split into three sections User Tuner Special Open Loop Fueling e It s best to read the UTEC users manual to understand these They are fully explained in the manual PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Log 1 seems to be the best for daily logging Boost PSI RPM PDXTuning PDXTuning pa LI m HO AJ T ENODWEWN Chon E Lad Lad lad Lal Lu Lu du MAP psi 10 PDXTuning Actual MAF Volts UTEC Load Column Look at RPM Load Column D o un i Lu E PDXTuning KAR LI PDXTuning Ur Lr y la TH NO ala Got any TPS 105 104 104 104 105 103 103 103 PDXTuning AFR Ignore CU OLIMTE PDXTuning PDXTuning ECU Timing Cycle rae rae rae rae roe rae rae rae PDXTuning PDXTuning Logging Injector Duty Idrma L d
4. PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Fuel Tuning Table More positive numbers represent more fuel e A value of 2 1s more fuel than an value of 1 A value of 6 1s less fuel than a value of 5 Get the drift You are modifying the Mass Air Flow MAF voltage reading by a percentage Applies to both classic and open loop fueling modes e PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Fuel Tuning gt TPS crossover Fueling for Rapid Spool Up Always use a Wideband O2 sensor to tune your fuel values Over TPS crossover UTEC load swaps to MAP gt Keep Low RPM and Low Boost Fuel values on the leaner side gt This creates HOTTER EGT s which helps the turbo spool le n oy el e elele elle quicker gt EE gt Richen up fuel at mid RPM and A z zi 2 mid boost Safer for your WRX if ref ens 3457 you don t have water injection gt My ARR target was 12 5 1 up until 2750 RPM PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Load Knock TPS Site Count QT 104 40 T 3 2 104 J 1 2 105 3 4 105 3 4 105 2 1 3
5. PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning The Quick Guide To Subaru luning with the UTEC Sponsored by PDX Tuning Inc http www pdxtuning com The Ginge s UTEC tuning experience As of 12 02 2004 gt lt i 7 po j vee Ay NAN babaha y u Pa NG d WAG a os L ME i ti Aon MR NUS i ai m y n 7 U EA n Win NG fw Y bw CF ICON ERES y Wn Pos SU T 4 1 KO M V EUR X5 NG i WR Pay howe Vile n LU dare Ng A Es ii Na Me hy Awe n ANS L LM py s Wa iim un y Wu IU o NA NA a ne ka Pau Ty LU TAE NOE N yr VN NEU Y ph RM M NW Y Sy Kit YO m A UT TU i WE a K l AU E f k T di t i Fw y fi XA aj MU i ALS EN VI A fW M Ma o y i i a wt d byddo M TT LC gt Y TANG 4 Ad TG TURA WO vr BM Ma Tau uw S D 1 Du K AY Aa i t Wa 4 j GANAN E Ni vs Ya Wf Eo A 4 i ya ue PN t d LAS t AW Ig yi M f M T Th MU P Sas NM PDXTuning PDXTunin g PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTunin g PDXTuning g UE Ja ix Ln Wy 4 aue MM KAN UN E AN p VAN d PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning H di i a rar Wr i V b M L WW x Nak y o ha N XM cC et BUNGA PA i a ANg PAT WE LoT NG yA URL GaP id TA um f
6. 4000 16 1psi 16 5psi 17psi 6000 12 505 2 5098 J 2psi 16 5psi 1 5psi 7000 a 16 5psi PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning AO S Why do I get knock with the TurboXS supplied maps gt TurboXS maps are usually tuned for 94 octane petrol maybe your on 91 92 octane petrol Use Octane challenged map or increase the octane content of your petrol I find Toluene works very well What s the nearest planet to the sun Mercury PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Backup Information Classic Fuel Tuning Classic Mode Fuel Tuning NOT Applicable to OPEN LOOP FUELING Mode PDXTuning PDXTuning PDX Tuning PDX Tuning PDX Tuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Fuel Map Tuning 3 1 Default 0 column applies Past cross over point Throttle gt 60 to all RPM s below load 1s represented by Mass Absolute TPS cross over point Pressure MAP as defined in the 6090 by default SPECIAL CONSTANTS PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PD
7. Can cause knock when control passes from ECU to UTEC and back Needed for cars with BigMAF Resolution Move timing values into those area LEAVE lower RPM 0 under ECU control mE T m X E 5 gt IL e ld k 4 3 k ja yk 4 el KA x LO d c o o ui LT 4 1 fa dk 4 ble ob eb Leb ab eb ab eb eb eb FP pak alk Fa dk fa yk NATE Jaye fade o c Cc L un Smooth transitions in timing minimizes the chance of knock Try to limit steps in timing to less than 3 degrees PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Knock after shift timing correction Use conservative timing values in upper 0 column to minimize the chance of knock after shift ECU runs huge timing advance after high RPM shift This can cause knock after shift conditions PAD Engine Speed APM 25214 Timez81 7596ms BAC ig nain lm m F ih BOO ER BA 5 rb H rn o an PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Too much advance Too much advance leads to KNOCK and engine dest
8. solenoid duty cycle to hit boost target PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Open loop control e I just stuck with the TurboXS map until closed loop was 1ntroduced Used bleed valve to set max boost value Sorry No More Information Available PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Closed Loop Control Change Control mode in SPECIAL CONSTANTS To 0 e Start with low numbers and work up Bleed valve effects max boost set at open 2 3 turns and forget Boost Gain value effects max boost Ramp up the boost this 45 50 seems to work best will make part throttle Effects boost ramp as well 10 sl sl s alk C z PRG ECU ARN rt jJ i Li i AT a kale KAL L I k 4 EL m m KI L1 DI L1 DI L1 px k Jale DE Dr z z I 2 no PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Closed Loop Boost Gain Lower Boost Gain Values e Quicker Boost Ramp up
9. 5 105 13 5 3 8 104 5 3 3 8 105 O 3 6 104 Log to correlate data back to UTEC load column reference gt My ARR target was 11 5 1 PDXTuning E S PDXT Mod Iur deg 22 Qi 418 0 0 0 419 0 33 0 18 0 am rl U Le MAP Adjust column to meet target AFR PDXTuning 1 PDXTuning PDXTuning PDXTuning PDXTuning Fueling Part 2 Mad EUST Boost MAF 25 CL Y 330 00 7 0 120 00 2 4 320 00 3 1 5 320 00 3 1 9 320 00 3 3 320 00 3 3 l 320 00 3 320 00 3 2 320 00 3 6 ESL IK ww UN s52 4 ind eae GEN NG SEEK Ln LAN 1G m eg cd ng ng ng ng ng ee PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Knock correction and Fuel luning e Add fuel to correct knock conditions WRX typical problem areas o PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Around 4000 RPM Around 5500 RPM e Stage4 Map example e Rich around 4000 RPM iN E E NN LG J t FFR n did dd Adda PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Fuel Tuning New in 4 1 Open Loop Fueling Mode PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXT
10. DXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Just in case you did not read the last bullet on the previous page PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Agenda UTEC Overview Basic WRX Tuning theory UTEC Control and TPS Calibration UTEC and knock Map Tuning gt Fuel 0 tuning and Open Loop Fueling Timing Boost Parameters Logging Spare Solenoid Usage Handy software applications FAQ s PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning UTEC Overview How does the UTEC enable more Horse Power ncreases decreases fuel Advances retards timing Control over boost pressure PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Basic WRX Tuning theory Increases HP Negative Effects Advance timing More prone to knock Fuel 1gnited earlier PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDX
11. PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Spare Solenoid Usage H12v UTEC auxiliary solenoid supports 2 amps max Use a secondary solenoid to _ Red Wire 2 power higher ampere devices White Black Override Switch Diode eliminates EMF switching spike Optional but recommended GND Bl ack PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Handy UTEC Utilities PSI Consulting Copyright 2002 PSI Consulting Inc Warning This is a beta copy which does not qualify for suppoi EE Lm dw gs G a TAG eee ae m KA ate NS y un w Pa lt 2 n EMP Na maga f Lay du ai A j lt T STRE ETT A nf T E KAM NG UTECLogger Free Pay Found on http www wrxhackers com Create Edit UTEC maps can connect to UTEC in real time c UTECLogger C Documents and Settings 3 mposner 4 My Docun ur File Edit Tools Help 5 gt al X Map Name i Fuel Values O apples to all fuel below TPS crossover point 107 10607 equates to Manifold Absolute Pressure if TPS gt crossover zz 0r 2 30 40 EEE gt B Pa Bka au EIE 100 7 2 B 5 2 b z 5 2 b z b z b z ib E E le bd lb Lele e a T na EI yc e res ita Pr resp neo ka SEB pep emp Ka e esp re res ip ep KA mes NE ES PLA re
12. Tuning yr ar aa UU PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning UTEC Boost Controller Setup PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Boost Map Tuning Boost Control 1s TPS RPM based TPS 2 fo Ka m m LI m NN I _ i _ k Ils Ils Is 1 1 3 E o 3000 281 ma 32 E 200 300 um 260 300 m um 280 23 con T RPM pi 4000 4250 o o m m o m 3 L m CI J _ lp DL DE m m DJ _ Z L 3 m m m o Mm Mm C _ i m zl zl son ao KI Mi Mi L J CI CI m 1 m 1 1 ARDO s E E BE E 4 50 BI PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Open Loop Closed Loop Boost Control Open Loop Default UTEC map sets boost solenoid duty cycle Closed Loop UTEC map detines target boost unit UTEC automatically changes
13. Tuning PDXTuning PDXTuning UTEC Control Fuel Based on Throttle position TPS versus RPM or MAP Timing Based on Throttle position TPS versus RPM or MAP 0 column applies to all RPM s below TPS cross over point e Past cross over point 10 100 columns represent MAP as set in the SPECIAL CONSTANTS e Below Cross over it s TPS Boost Based on Throttle position versus RPM PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning TPS Calibration e Why e Enables correct load point selection based on TPS e How e Modify values in SPECIAL CONSTANTS menu 1 Turn on Car do NOT start car Using Logger 4 Record TPS TO p Full depress throttle record TPS T1 ust over 3 Max TPS T1 51 If TPS never reads 100 you will never reach the 100 load column And TPS RPM to RPM MAP cross over point will be incorrect PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning UTEC and Knock e UTEC only corrects knock when it isin control of timing e TPS gt Crossover e Timing retarded by 2 degrees for 100 crank cycles Continues to retard timing until knock 1s no longer detected e Very sensitive
14. XTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Stock O2 sensor 1s wideband but it s not recommended to tune against it under WOT Even when UTEC log reads rich AFR maybe as high as Lean AFR s lead to high EGT s and possible engine damage Tune fuel using a real O2 sensor PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Tuning the 090 column for NON stock injectors If you have larger than stock injectors you should tune your 090 column using an OBDII Scanner Effects ECU s Long Term and Short lerm trim values gt Typical Staged map yields LT values from 20 to 20 e Fine to be within 7 to 7 I think that 7 to O is better This is not required if you re still using the stock injectors e Add remove a percentage of MAF to set the trims in line Do his First PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Tuning the 090 column for NON stock injectors Open loop fueling When using open loop fueling the UTEC automatically does 0 fueling compensation e The value used 15 calculated from the difference between the Stock injector size and the UTEC injector size The larger the difference the more modification is do
15. XTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Fuel Tuning More positive numbers represent more fuel e A value of 2 represents more fuel than an value of 1 A value of 5 represents more fuel than a value of 6 You are NOT modifying injector duty cycle NG You are modifying the Mass Air Flow MAF voltage reading by a percentage PD E Ka PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Theory behind MAF based fuel modification e Fools the ECU UTEC when 1n OLF control A reduction in MAF voltage fools the ECU UTEC in thinking that less air is flowing into the engine thus less fuel 1s required Injectors duty cycle 1s reduced An increase in MAF voltage fools the ECU UTEC in thinking that more air is flowing into the engine thus more fuel 1s required Injector duty cycle 1s increased PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Why Tune the 090 1s using classic fueling mode e Long Term Trim value used in ECU Open Loop ECU open loop not UTEC fuel control Long term value will effect your gt 03 TPS fuel values
16. d Select HP R ange 500 2500 250 4750 SO00 7000 2250 9000 LITECLogaer 1 13 FM PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning bb EN E d e PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Other Handy UTEC Utilities e Log Template xlt e Excel Spread sheet that converts log file to graph format e AutoLogger e Automatic logging with some other cool features e UTECEdit Another great UTEC map creation tool I use this one O PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning AO S e Do I have to use the UTEC boost controller No UTEC can be used to control only timing and fuel while something else MBC AVCR controls boost e Should I calibrate the MAP e Yes but I didn t e My TPS never reads 10090 1s that ok No calibrate it PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning AO S e Should I use launch control Risky but fun it s your car you make the decision e How much boost should I run Use TurboXS recommendation as a guide RPM Stage Stage 1 Stage 2 Stage 3 Stage 4 Stage 4 FMIC
17. ed 175 15 11 70 11 1 1 1 Ts uu pP T IF DDAU i Pa L Ji M IP PDXTuning PDXTuning Fuel modify o UTEC controlled timing mo c I dri dec 118 17 17 17 Kr 118 18 Pd MS PDXTuning Boost Mod Fue J CO CO DD EJ S LE PDXTuning Open Closed BM loop setting ECL 00 TAX tia luas sua agta TAX tia APA agta CL Cua m a Na E li E B_ Eh PDXTuning PDXTuning UTEC MAF Volts Lad Lad Lad lal lud lad Uu Lad PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Always Too much Boost A 0AL 4214 0 3 9 103 100 PDXTuning PDXTuning Log Debugging look at the values that lead up to the knock event Boost Timing Fuel UTEC running too much timing Too Lean advance The ECU did not want to run that much timing Los Log Los Log Load Log Los Log T n y ci 0 Go va TOO CE LC Ou i n nm DE L a i non F O 103 100 1 103 100 PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning LI EN Lal ou feo fe JT J Lad 1 WM l EN T PDXTuning PDXTuning PDXTuning
18. i Hello from Sarah and Mick WA ij UN t nw N N PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning 1 LEE x LI PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Updates 09 07 2003 Initial Version 02 26 2004 Added information on 4 1 firmware release 03 22 2004 Started Adding notes pages 12 02 2004 Clean up and added some additional information Trip to the UK and back PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning The UTEC User Tunable Engine Computer Override control of gt Fueling gt Timing gt Boost PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Expectations What you are going to learn PDXTuning v The basics required to tune with the UTEC What you are NOT going to learn Real WRX tuning PDXTuning PDXTuning Caution This will be enough information to destroy your WRX READ THE UTEC USER MANUAL e This quick guide does not replace it PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning P
19. ion 3 2a le 2003 PARAMETER RANGE VALUE pen Loop Fuelling OFF 0 ON 1 Gori Injector Flow cc per min 300 to 1000 420 Rev Limiter x100 30 to 80 73 Screen parameters may have changed a little since this screen shot was taken PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Default OLF Operatlon f injector flow has not been adjusted then classic style Fuel Maps are compatible when Open Loop Fueling 1s enabled e Fueling will be much more consistent e Default cross over into OLF 1s 25 TPS e Resolves 2004 WRX closed open transition issues f UtecEdit 1 0 File wiew Edt Help You may have to re tune r load points PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning some of your lower load point Why Because before this MENE HE SE EE you may have never been AE ME AE RR ME SE RE running through these lower PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Changing njector Flow Scaling Requires 4 or above firmware To enable UTEC generates AFR curve Enter the OLF menu option based on e Modify Injector Flow MAF RPM and Supports 300 to 1000 flow rate scaling factor 500 560 seems t
20. ne e Follow the attached notes to work out how to really do it Do This First PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Tuning the 0 column Simple Tuning Procedure 1 Warm the car up Reset the ECU e While in neutral gt Rev car from idle to 5000 RPM while logging LT and ST Adjust 0 to add remove fuel where needed If LT and ST show positive ADD fuel If LT and ST show negative REMOVE fuel Reset ECU and Repeat Do this until LT and ST read close to O PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Tuning the 0 column Simple Tuning Procedure 2 e Go drive the car while logging LT and ST e Under load fuel conditions are different e Again adjust 0 column to try and get LT and ST as close to as possible It s never going to be perfect but 1t should be close PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Delta Dash Log of 0 Tune Nice and stable LT Very stable idle SI not too bad Effect of free air BOV i Al Fuel Cor
21. o work for STi Injectors e When a Stock style air box is used gt PARAMETERS OPEN LOOP FUELLING TURBONS UTEL Version J 2a lc 2003 PARAMETER RANGE VALUE pen Loop Fuelling OFF 0 ON 1 Dori Injector Flow cc per min 300 to 1000 20 Rev Limiter x100 30 t080 7 PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning NE LLLLL LLL CLA AV CO CUCO VO RCC CCCSOGPCCUO COU OULLVgVVgAVA UA AV pUCCCAAA GDCDOC CEOO OUO ee PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Modified Stock Injector Flow Scaling e Start with a low value The injectors may flow 740cc but do they match your MAF readings You maybe flowing more air BigMaf for example Start with injector low set at 700 guess ncrease this value while monitoring AFR curve with wideband O2 sensor e Fine tune AFR curve using a map overlay Next page O PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Modifying Fine tune AFR curve by adjusting fuel map in standard fashion PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Scaled OLF AFR Curve UtecEdit v1 0 File View Edt Help General Fuel Map Timing Map Boost Map PDXTuning EDUC lm m B Z 500 O8 08 18 18 750 BEY as os
22. oint PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Timing Map Tuning SPECIAL CONSTANTS U 76O AE Jt 12 15 1750 ATAT Al LE LI PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Past cross over point Throttle load is represented by Mass Absolute Pressure MAP as defined n the PDXTuning PDXTuning EET T 1 AT HG PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Timing Advance Retard gt Retard Timing Less degrees before TDC Number of Degrees before top dead center Advance Timing More degrees before TDC Cylinder Top Dead Center TDC PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Effects of timing adjustment More Power Lower EGI s Advance Timing Spark ignites air fuel mix MORE degrees before top dead center More prone to knock More Torque Higher EGT s Retard Timing Spark ignites air fuel mix LESS degrees before top dead center Less prone to knock PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Timing Adjustment issue Default maps don t have timing down in the 10 6090 columns
23. os o o i 1000 0 8 0 8 5 0 5 ll l 0 Y 0 c 0 1500 EN 2000 2250 mass 2500 as ass o 7 2750 5 NEN nm iri Mi GL 0 WET ag og 07 i 50 ACH 359 o A Gime 65 4500 a 6 5 SUME 65 5250 5500 5750 6000 6250 e500 UNE 57 7250 70 5 2 a 70 OB 3X 100 C Documents and Settings mposner My Dacuments wrs LITEC Maps test tat PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Programmable Rev Limit e Now UTEC controls fueling it can also control rev limit Way cool e Warning Unless you have strengthened internals changing rev limit could cause serious engine damage PARAMETERS OPEN LOOP FUELLING TURBONS UTEC Version 3 2a c 2003 PARAMETER RANGE VALUE Open Loop Fuelling OFF 0 ON 1 Gori Injector Flow cc per min 300 to 1000 420 Rev Limiter x100 30 to 80 7 PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Timing Tuning Timing ninja fu PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning 0 column applies to all RPM s below TPS cross over p
24. rection 1 2 CE ae P Ste P e Engr Speed FPM 3347 Time 111471ms PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning CODE aet RROD brb ADOG oeb 5h 550 gr du yd 1 HS PDXTuning PDXTuning PDXTuning PDXTuning Knock after shift fuel correction PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning e Knock after shift 1s usually down to two things e 1 Lean conditions just after shift e 2 Large jump in timing just after shift e Adding fuel at 50004 RPM s in the lower boost range can minimize this effect e Having timing values down in the lower columns also helps PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Fuel Tuning OPEN LOOP FUELING Mode PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning 0 column applies to all RPM s below TPS cross over point PDXTuning PDXTuning ROD ite 1250 1500 1750 ey ee 2E 1H dt ELO LE PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Fuel Map Tuning Past cross over point Throttle gt 25 load 1s represented by Mass Absolute Pressure MAP as defined 1n the SPECIAL CONSTANTS
25. ruction ix At redline too much advance means very high cylinder pressure BANG Dead WRX 3 At a point more advance does not yield more power e At that point more advance just takes you closer to knock e Back timing off 1 2 3 points to create a safe map e Saw this on the dyno PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Timing Low Down 4343434 4 4 347 apa d 5 E g5 S J gt i 5 gt gt PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning liming Values Mid to Top End gt Watch for knock in the mid rpm range pi L LT gt Minimal advance here is good After 3750 RPM s start ramping timing up 22 26 degrees of advance should be safe at redline hel aol lol dele dadala Leb lek Led Lede Ll le Ll lale Leb Mm KA CN lele Lele Ete E e Lele o c DERE Adda n e es Hn al S e e LT a Smooth Transitions steps of 1 3 are best amp Watch for KNOCK f you get knock back off the timing 1 2 os 3 degrees at LEAST 6760 PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDX
26. uning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Why Open Loop Fueling e Eliminates the delay in transitioning from closed to open loop fuel control n the stock ECU Big issue with the 2004 WRX ECU Enables Programmable Rev limit Enables injector scaling Eases fuel tuning when larger than stock injectors are installed Do not use scaling with a classic style fuel map PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning What 1s Open Loop Fueling UTEC MAF BASED FUELING Full fuel control not an offset of the ECU fueling No longer have to worry about effects of the Long Term Fuel Trim value CONSITENT FUELING no more long term trim offset MAF base fueling UTEC calculates injector dut cycle based on MAF RPM UTEC isin full control of fueling PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning PDXTuning Turning on Open Loop Fueling Requires 4 or above firmware To enable Enter the Open Loop Fueling menu option Turn on Open Loop Fueling Change to be On by default in 4 2c and above New base maps from TurboXS are tuned for OLF PARAMETERS OPEN LOOP FUELLING TURBONS UTEG Vers
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