Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech

Possible causes – Faulty Engine Control Module (ECM)– ECM harness is open or shorted– ECM circuit poor electrical connection– ECM Programming Tech notes Check the ECM fuse, if fuse is OK try erasing the code first and if the code

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

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

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

Possible causes – Faulty Evaporative Emission System (EVAP) Pressure sensor– Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted– Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection When is the code detected? An excessively high voltage

Possible causes – Faulty Evaporative Emission System (EVAP) Pressure sensor– Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted– Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection When is the code detected? An excessively low voltage

Possible causes – Faulty Evaporative Emission System (EVAP) Vapor Pressure Sensor– Evaporative Emission System (EVAP) Vapor Pressure Sensor harness is open or shorted– Evaporative Emission System (EVAP) Vapor pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) When

Possible causes – Faulty Evaporative Emission System (EVAP) Vapor Pressure Sensor– Evaporative Emission System (EVAP) Vapor Pressure Sensor harness is open or shorted– Evaporative Emission System (EVAP) Vapor Pressure Sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) When

Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks

Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks

Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks–

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Intake air leaks may be faulty– Exhaust gas leaks– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection–

Possible causes – Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure – Faulty Mass Air Flow (MAF) sensor When is the code detected? – Fuel injection system does not operate properly.– The

Possible causes – Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Faulty Mass Air Flow (MAF) sensor When is the code detected? – Fuel injection system does not operate properly.– The amount

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor (H2OS) Bank 1