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Troubleshooting

1. BLINKS ENGINE WON T START DIFFICULT TO START ENGINE WHEN COLD IRREGULAR IDLING WHEN COLD FAST IDLE OUT OF SPEC ROUGH IDLE WHEN WARM IDLE SPEED TOO HIGH IDLE SPEED TOO LOW FREQUENT STALLING POOR PERFORM ANCE WHILE WARMING UP AFTER WARMING UP OR ROUGH RUNNING FAILS EMISSION TEST OIG LOSS OF POWER If codes other than those listed above indicated count the number of blinks again If the indicator is in fact blinking these codes substitute a known good ECU and recheck the indication goes away replace the original ECU When the Check Engine warning light and the self diagnosis indicator are on the back up system is in operation Substitute a known good ECU and recheck If the indication goes away replace the original ECU SOHC 6 16 DOHC IDLE CONTROL ATMO ELEC IMA SPHERIC TRONIC OTHER FUEL EMISSION SENSOR PRESSURE SIGNAL SENSOR CONTROL conTRos SUPPLY INTAKE CONTROL 52 61 59 70 82 89 6 17
2. substitute a known good ECU and recheck If the indication goes away replace the original ECU When the Check Engine warning light and the self diagnosis indicator on the back up system is in operation Substitute a known good ECU and recheck If the indication goes away replace the original ECU SOHC DOHC 6 14 72 PGM FI IDLE CONTROL FUEL SUPPLY INTAKE AIR ATMO ELEC SPHERIC IGNITION VEHICLE TRONIC OTHER FUEL OTHER EMISSION OUTPUT SPEED FUEL INTAKE CONTROL IDLE PRESSURE CONTROL INJECTOR SENSOR SIGNAL SENSOR VALVE CONTROLS SUPPLY 6 15 Troubleshooting Troubleshooting Guide Without CATA NOTE Across each row in the chart the systems that could be sources of a symptom are ranked in the order they should be inspected starting with Find the symptom the left column read across to the most likely source then refer to the page listed at the top of that column If inspection shows the system is OK try the next most likely system 2 SYSTEM PGM FI MANIFOLD COOLANT INTAKE AIR ABSOLUTE CRANK 70 TEMPERA TANGLE TEMPERA PRESSURE SENSOR TURE TURE SENSOR SENSOR CHECK ENGINE WARNING LIGHT TURNS ON SELF DIAGNOSIS INDICATOR LED
3. Troubleshooting Troubleshooting Guide With CATA NOTE Across each row in the chart the systems that could be sources of a symptom are ranked in the order they should be inspected starting with Find the symptom the left column read across to the most likely source then refer to the page listed at the top of that column If inspection shows the system is OK try the next most likely system etc MANIFOLD CYL OXYGEN ABSOLUTE CRANK PAGE SYSTEM TDC CRANK CYL COOLANT THROTTLE ECU SENSOR SENSOR ANGLE SENSOR PRESSURE SENSOR TURE SENSOR sensor SENSOR SYMPTOM 21 24 26 32 46 36 42 44 CHECK ENGINE WARNING LIGHT TURNS ON CJ or SELF DIAGNOSIS INDICATOR LED BLINKS 107645 1 24929646 46 2 4 ENGINE WON T START 2 DIFFICULT TO START ENGINE WHEN COLD WHEN COLD FAST IDLE OUT OF SPEC 1 ROUGH IDLE IRREGULAR IDLIN WHEN WARM IDLE SPEED TOO HIGH WHEN WARM IDLE SPEED LOW WHILE WARMING UP FREQUENT STALLING AFTER 8 WARMING UP MISFIRE OR ROUGH 3 RUNNING POOR FAILS PERFORM EMISSION 2 055 If codes other than those listed above indicated count the number of blinks again If the indicator is in fact blinking these codes

Troubleshooting

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