I have an 05 6.0 with new injector harness, new motorcraft icp and ipr, icp plug is new, ficm is new, warren diesel injectors put in in July, numbers aren’t showing hpop leak, air test doesn’t show anything, truck idles rough when I take load off the engine like turning off the air conditioning in park. Doesn’t lack power doesn’t smoke, starts fine hot or cold. Driving me nuts. No codes, I’m lost for ideas
Injectors are 155/stock and I’ve got warren diesel tunes and tsd tunes does it on both. Egr is deleted and I have studs. I should have added that in the first post
Had a buddy that runs a shop tell me it sounds like a crank position sensor if everything else checks out. He said he’s had it one or two other times. Unexplainable rough idle, no codes. Crank sensor solved it. Anyone else hear anything like this?
I replaced the already new icp pigtail after I noticed the icp voltage was off. All seems to be good now. Will update after I drive it a little bit more today
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