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P1377 Diagnostic Trouble Code Discussion for April 2005

ICM CMP Pulse To 4X Reference Pulse Comparison

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Trouble Ticket Help Requests for DTC P1377
Help Request Posted
1997 Cadillac DeVille 4.6L Hesitation, MIL Lamp on VIN: 1G6KDS2Y6V
hello all I am stuck on this cadi had codes when car came in all scan data seemed correct cleared codes and test drove codes did not come back but every once in a while you get a stumbble off of accel but not predictable. have went through trouble tree for p0...
April 01, 2005