Possible causes – Dirty Fuel Injector 6– Faulty Fuel Injector 6– Plugged Fuel Injector 6– Fuel injector 6 harness is open or shorted– Fuel injector 6 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 7– Faulty Fuel Injector 7– Plugged Fuel Injector 7– Fuel injector 7 harness is open or shorted– Fuel injector 7 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 7– Faulty Fuel Injector 7– Plugged Fuel Injector 7– Fuel injector 7 harness is open or shorted– Fuel injector 7 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 7– Faulty Fuel Injector 7– Plugged Fuel Injector 7– Fuel injector 7 harness is open or shorted– Fuel injector 7 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 8– Faulty Fuel Injector 8– Plugged Fuel Injector 8– Fuel injector 8 harness is open or shorted– Fuel injector 8 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 8– Faulty Fuel Injector 8– Plugged Fuel Injector 8– Fuel injector 8 harness is open or shorted– Fuel injector 8 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty Fuel Injector 8– Faulty Fuel Injector 8– Plugged Fuel Injector 8– Fuel injector 8 harness is open or shorted– Fuel injector 8 circuit poor electrical connection Tech notes Clogged or partially clogged fuel injector can cause

Possible causes – Dirty throttle body– Electric throttle control actuator misadjusted or damaged– Faulty Electric throttle control actuator– Intake air leak– Poor electrical connection to the Intake Air Control (IAC) valve Tech notes If there are no intake leaks, clean

Possible causes – Dirty throttle body– Electric throttle control actuator misadjusted or damaged– Faulty Electric throttle control actuator– Intake air leak– Poor electrical connection to the Intake Air Control (IAC) valve Tech notes If there are no intake leaks, clean

Possible causes – ECM Harness power supply circuit is open or shorted– ECM Programing– Faulty ECM Tech notes Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have

Possible causes – EGR passage clogged– Faulty EGR Vacuum Modulator Valve– Faulty EGR Valve– Faulty EGR solenoid valve– EGR solenoid valve harness is open or shorted– EGR solenoid valve circuit poor electrical connection– Dead (Weak) battery– Faulty EGR temperature sensor

Possible causes – EGR Valve clogged, dirty or leaky– EGR valve damaged/defective– EGR volume control solenoid valve– EGR temperature sensor and circuit– EGR volume control solenoid valve harness is open or shorted– EGR volume control solenoid valve circuit poor electrical

Possible causes – EGR volume control solenoid valve– EGR volume control solenoid valve harness is open or shorted– EGR volume control solenoid valve circuit poor electrical connection– EGR temperature sensor and circuit Tech notes There is a factory service bulletin

Possible causes – EGR volume control solenoid valve– EGR volume control solenoid valve harness is open or shorted– EGR volume control solenoid valve circuit poor electrical connection– EGR temperature sensor and circuit When is the code detected? An improper voltage

Possible causes – EGR volume control valve stuck open– Faulty EGR volume control valve– EGR solenoid valve harness is open or shorted– EGR solenoid valve circuit poor electrical connection– Faulty EGR temperature sensor and circuit Tech notes There is a

Possible causes – Engine Control Module (ECM) Harness power supply circuit is open or shorted– Engine Control Module (ECM) Programming– Faulty Engine Control Module (ECM) Tech notes Check the ECM fuse, if fuse is OK try erasing the code first

Possible causes – Engine Control Module (ECM) may be faulty– ECM harness power supply circuit is open or shorted– ECM harness ground circuit is open or shorted Tech notes Try erasing the code first, if the light comes back ON

Possible causes – Excessive resistance in the circuit– Low or no fuel– Wiring harness connector of the fuel pressure sensor– Fuel Rail Pressure Sensor– Fuel Pump Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine will not

Possible causes – Exhaust Gas Recirculation (EGR) volume control valve stuck closed– Faulty Exhaust Gas Recirculation (EGR) volume control solenoid valve– Faulty EGR Valve– Faulty EGR temperature sensor and circuit– Exhaust Gas Recirculation (EGR) solenoid valve harness is open or

Possible causes – Faulty A/C Evaporator Temperature Sensor– A/C Evaporator Temperature Sensor harness is open or shorted– A/C Evaporator Temperature Sensor circuit poor electrical connection When is the code detected? When the A/C Evaporator Temperature (ACET) sensor signal is high