Possible causes – Check other codes first– Partial clutch application following start up Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1400 ISUZU Description As measured within the first 70 seconds of engine run time
Possible causes – Differential Pressure Feedback Electronic Sensor harness is open or shorted– Differential Pressure Feedback Electronic Sensor circuit poor electrical connection– Faulty Differential Pressure Feedback Electronic Sensor Tech notes There is a factory service bulletin for the following Mercury
Possible causes – Differential Pressure Feedback Electronic Sensor harness is open or shorted– Differential Pressure Feedback Electronic Sensor circuit poor electrical connection– Faulty Differential Pressure Feedback Electronic Sensor Tech notes There is a factory service bulletin for the following Lincoln
Possible causes – Differential Pressure Feedback Electronic Sensor harness is open or shorted– Differential Pressure Feedback Electronic Sensor circuit poor electrical connection– Faulty Differential Pressure Feedback Electronic Sensor Tech notes There is a factory service bulletin for the following Ford
Possible causes – DPFE Sensor harness is open or shorted– DPFE Sensor circuit poor electrical connection– Faulty DPFE Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) MAZDA Technical Service Bulletins for P1400 code 2001 MAZDA TRIBUTE
Possible causes – EGR Valve harness is open or shorted– EGR Valve circuit poor electrical connection– Faulty EGR Valve Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – EGR Valve harness is open or shorted– EGR Valve circuit poor electrical connection– Faulty EGR Valve Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty The EGRC-solenoid valve– The EGRC-solenoid valve harness is open or shorted– The EGRC-solenoid valve electrical circuit poor connection Tech notes Check hoses connector at the EGR solenoid valve or clogged EGR valve system. When is the
Possible causes – Faulty The EGRC-solenoid valve– The EGRC-solenoid valve harness is open or shorted– The EGRC-solenoid valve electrical circuit poor connection Tech notes Check hoses connector at the EGR solenoid valve or clogged EGR valve system. When is the
Possible causes – Fuel Tank Pressure Control Solenoid harness is open or shorted– Fuel Tank Pressure Control Solenoid circuit poor electrical connection– Fualty Fuel Tank Pressure Control Solenoid Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Manifold Differential Pressure (MDP) sensor harness open or shorted– Manifold Differential Pressure (MDP) sensor circuit poor electrical connection– Fualty Manifold Differential Pressure (MDP) sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1400 HYUNDAI
Possible causes – Manifold Differential Pressure (MDP) sensor harness is open or shorted– Manifold Differential Pressure (MDP) sensor circuit poor electrical connection– Faulty Manifold Differential Pressure (MDP) sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Manifold Differential Pressure sensor harness is open or shorted– Manifold Differential Pressure sensor circuit poor electrical connection– Faulty Manifold Differential Pressure sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1400 JEEP Description The
Possible causes – Manifold Differential Pressure sensor harness is open or shorted– Manifold Differential Pressure sensor circuit poor electrical connection– Faulty Manifold Differential Pressure sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1400 DODGE Description The
Possible causes – Manifold Differential Pressure sensor harness is open or shorted– Manifold Differential Pressure sensor circuit poor electrical connection– Faulty Manifold Differential Pressure sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1400 CHRYSLER Description The
Possible causes – Sub-Throttle Position Sensor harness is open or shorted– Sub-Throttle Position Sensor circuit poor electrical connection– Faulty Sub-Throttle Position Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Sub-Throttle Position Sensor harness is open or shorted– Sub-Throttle Position Sensor circuit poor electrical connection– Faulty Sub-Throttle Position Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Symptoms – Engine Light ON (or Service Engine Soon Warning Light)