P1551 - Cylinder 1 Injector Circuit Range/Performance
WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
P1551 - CYLINDER 1 INJECTOR CIRCUIT RANGE/PERFORMANCE
| Description: | The powertrain control module (PCM) monitors the charge and discharge voltage of the piezo actuator device during the fill stage, main injection and end of main injection stage. The DTC sets when the main injection and end of main injection stage voltages are out of calibrated range. | |||
| Possible Causes: |
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| Diagnostic Aids: | Turn the injector ON and OFF by controlling the INJX_OFF PID when diagnosing this DTC. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | refer to PINPOINT TEST P . | |||