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International Automotive Technicians Network
Re: 91 Chevy 1500 high idle
Posted to Technical Discussion Forum on 2/13/2005 1 Reply

what is the base timing set to? i believe 8 degrees is called for.

the tps seems a little low, most of these are closer to .8 volts. the iac counts are higher than normal for a proper idle of 800 in park (25 - 35), i believe the ecm has a anti-stall strategy... Login to read more.

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