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Re: Problem with 1993 Pontiac Grand Prix
I would also recheck your electrical connections. If a sensor is loose you would get the instant SES light. I'd double check the ESC sensor which could also lead to unmitigated knock, although a number of other sensors could contribute.
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1988 Chevy R-30 1 ton DRW pickup (217k)
1991 Chevy S-10 4WD pickup (192k)
2000 Grand Prix GTP (218k)
2002 GMC Yukon (185k)
2009 G8 - GT (46k)
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