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P0622 Diagnostic Trouble Code Discussion for April 2010

Generator Field Control Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0622
Help Request Posted
2005 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, MIL Lamp on VIN: 1GNDT13S15
P0622: Generator F-Terminal Circuit Malfunction. ... control solenoid rusted. The question I have is & research has not produced the answer is this: if the AIR control solenoid shorts, will it casue an erratic idle (P0300- scanner showing random missfires on all cylinders) and a tach that jumps around wi...
April 07, 2010