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Re: est code set 42?? 1991 chevy p.u/1500 5.7
Posted to Technical Discussion Forum on 7/6/2001 1 Reply

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HI Terry,

Try searching the TDF for "code 42". You'll should get a bunch of hits. They'll give you good system descriptions for this code and what it takes to set it. Once you get the theory of this... Login to read more.

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