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Troubleshooting

1. codes other than those listed above indicated count the number of blinks again If the indicator is fact blinking these codes 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 are the back up system is in operation Substitute a known good ECU and recheck If the indication goes away replace the original ECU 6 12 FUEL SUPPLY PGM FI IDLE CONTROL ATMO ELEC SPHERIC GNITION VEHICLE ar OTHER FUEL PRESSURE CONTROL INJECTOR SENSOR VALVE 44 46 48 50 60 AIR INTAKE 64 EMISSION CONTROL 71 6 13 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 in 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 PGM FI PAGE SYSTEM MANIFOLD TDC COOLANT INTAKE AIR CYL TDC CRANK CYL THROTTLE ECU PRESS
2. 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 in 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 0 etc LED BLINKS SELF DIAGNOSIS INDICATOR Ofori PGM FI SYSTEM MANIFOLD COOLANT INTAKE AIR OXYGEN CRANK CYL TEMPERA TEMPERA SENSOR PRESSURE SENSOR TURE gevsor SENSOR SENSOR SENSOR SYMPTOM 18 22 24 26 40 36 38 42 CHECK ENGINE WARNING SOT TURNS ON Cor ty POSE PASE GES GEST GCSE 80 06 49 O 4 ENGINE WON T START DIFFICULT TO START ENGINE WHEN COLD 4 IRREGULAR IDLING WHEN COLD FAST IDLE OUT OF SPEC 2 ROUGH IDLE WHEN WARM IDLE SPEED TOO HIGH 1 WHEN WARM IDLE SPEED TOO LOW FREQUENT STALLING POOR PERFORM ANCE WHILE WARMING UP WARMING UP MISFIRE OR ROUGH RUNNING l a FAILS EMISSION TEST LOSS OF POWER
3. URE SENSOR SENSOR SENSOR TEMPERA Angle TEMPERA SENSOR SENSOR SENSOR SENSOR SYMPTOM 18 22 40 30 36 38 42 CHECK ENGINE WARNING SELF DIAGNOSIS INDICATOR LED BLINKS 37 48 4 9 48 49 lt a 9820489 ENGINE WON T START 2 DIFFICULT TO START ENGINE WHEN COLD 4 WHEN COLD FAST IDLE OUT OF SPEC 2 ROUGH IDLE 3 IRREGULAR LIN WHEN WARM IDLE SPEED TOO HIGH WHEN WARM IDLE SPEED TOO LOW WHILE 69 FREQUENT WARMING UP i AFTER WARMING UP 7 T ROUGH RUNNING POOR FAILS PERFORM EMISSION ANCE TEST LOSS OF POWER D If codes other than those listed above are 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 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 PGM FI IDLE CONTROL ATMO IGNITION OTHER MAp RON FUEL EMISSION PRESSURE TROL UPPL
4. Y INTAKE CONTROL RESSURE SIGNAL ONTROL CONTROLS 6 15

Troubleshooting

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