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Re: 1987 Chevy Blazer K5 EST ckt423
Posted to Technical Discussion Forum on 2/12/2002

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Yhe first thing I would do is check Dist pickup output. Unplug the pickup from the module and use an A/C volt meter between the two wires. The output should be between 600 and 900 mv A/C. If it is out... Login to read more.