1. Problem Verification

1. Connect a Hi-Scan (Pro) to the data link connector.
2. Start the engine.
3. Using the Hi-Scan (Pro), monitor the signal waveform of the injector.

Is the signal waveform normal? 

No: Go to next step.

Yes: Problem is intermittent or was repaired and engine control module memory was not cleared. Proceed with intermittent problem procedure.