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High idle and frustrated

526 views 2 replies 3 participants last post by  77cruiser 
#1 ·
Its probably a old subject but I'm trying get mine working. I hooked up to pin 71 on the ecm and ran a wire to a live 12v source with key on. But when i try the high idle truck revs up to about 1000 rpms then normal idle. But if i hold the idle at 1200 and push the acceleration button on the cruise it hold at 1000 at times.
 
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