Diagnostic Trouble Code (DTC) Information ECM-P019126
Condition
The engine control module (ECM) checks the signal from the fuel pressure sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The signal from the fuel pressure sensor does not change when fuel pump activation changes.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Normal driving for least 15 minutes and preferably after a start and stop.
NOTE:
The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The fuel pressure is set to a constant.
- The control signal to the fuel pump (FP) control module is set to a calculated value.
Possible Source
- Contact resistance in the connectors.
- Damaged fuel pressure sensor.
- Damaged fuel pump module.
Fault symptom[s]
- Driving/Poor performance/lacks power/At take off
- Starting/Engine stalls
- Driving/Poor performance/lacks power
- Driving/Hesitates/surges/Unsure when/at all times
- Driving/Hesitates/surges/During acceleration
- Driving/Hesitates/surges/During deceleration
- Driving/Engine stalls/Unsure when/at all times
- Driving/Hesitates/surges/At steady speed
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication