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P0621 Diagnostic Trouble Code Discussion for October 2009

Generator L-Terminal Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0621
Help Request Posted
2002 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC52442
P0621: Generator L-Terminal Circuit Malfunction. I am lost on this one. Cranks but will not start. Backfire out of intake sometimes. Sometimes catches a little bit like on one cylinder but that is it. Seems as if the timing is way off. Started by swapping a new ignition module, no change. Took it back and ...
October 06, 2009