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Old 03-02-2016, 08:16 PM   #1
PRINCETON_JAKE

Name: PRINCETON_JAKE
Title: Too Much Time
Status: Not Here
Join Date: Jan 2010
Location: Princeton Minnesota
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Posts: 1,125
Stuck on high idle plus underboost

I have a fully built 2006 cummins I had efi live done on. Wow it's anazing! By far the best mod to date, but at the same time I enharited a problem...

The truck is stuck at a 1,000 rpm idle, it does NOT kick off when I touch the brake or when it warms up, it is also trying to pull in gear. One thing we found is the flash scan lists 2 different temp readings, one matches the dash and changes with engine warm up, the other is stuck at -40 degrees.

Today, roughly 600 miles sense tuning, i stopped at a gas station for fuel and when I fired it up the check engine light came on the second it fired. At that point it was in limp mode so I limped to oriellys and scanned it, there was a P0266 "under boost" code. I cleared it and everything was fine the rest of the way home. Its had a boost fooler on it for the last 5+ years and the limiters disabled on top of that....
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silver 2006 ram 2500 4x4, crew cab short box, 48RE auto with "stuff" done, 5.9 with more "stuff" done
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