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International Automotive Technicians Network
Re: GM 3.4 DRIVABILITY HELP
Posted to Technical Discussion Forum on 4/6/2009 1 Reply

Hi Bryan,

Have you scoped the 7x CKP signal at the module?

I've seen many of these engines with a problem like you describe that was caused by the "twisted pair" harness from the ign module to the 7x sensor not being corrently re-installed in its holder af... Login to read more.

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