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P0621 Diagnostic Trouble Code Discussion for November 2007

Generator L-Terminal Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0621
Help Request Posted
2000 Chevrolet Cavalier LS 2.4L No Start VIN: 1G1JF52T1Y
P0621: Generator L-Terminal Circuit Malfunction. ... car would start and stall, then crank and no start, had car towed. Engine will run by adding fuel to throttle body. Injector pulse width ranges near 1.8-2.2 ms, found that by disconnecting MAP sensor pulse width goes to around 7.0 ms and car starts, althou...
November 08, 2007