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Took me a bit to find it,www.fieros.de>code42,it's all there

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That is a lot of good information, but have been through all of what he was saying.  I ran the truck today with a vacuum gauge on it and it is pulling 20 to 21 inches at idle.  Then when I rev it up to about 2k or so, it drops to 15 inches then comes back to 19 inches.  I am assuming through timing and iac position.

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What do you mean by screw contacts?  I am waiting for the engine to cool down now and will re-gap them, and let you know.

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The module hold down screws,and you mentioned the plug wires,do a spark leak test,keep hood as low as possible,peek in,look for arcing,

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