High idle and frustrated - Chevy and GMC Duramax Diesel Forum
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post #1 of 3 (permalink) Old 11-14-2019, 06:43 PM Thread Starter
Join Date: Apr 2019
Posts: 1
High idle and frustrated

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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post #2 of 3 (permalink) Old 11-15-2019, 11:12 AM
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What year model truck?
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post #3 of 3 (permalink) Old 11-15-2019, 12:21 PM
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Join Date: Jun 2011
Location: Frostbite Falls MN
Posts: 364
My 04 I have to push the CC on button twice it goes 1200 push resume it goes to 1800. Tap the brake it goes off.

04 GMC LB7 2500 SAC 45 injectors DSP5 EFI live, ported air inlet. 4" MBRP droning exhaust.
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