I ran stage2 160/100's an adrenaline hpop,d66 turbo and gearhead tunes made 438hp before I had it live tuned. It was an awskme running and towing setup.
Well I dug into it a little more and found the very rear rocker arm wasn't moving so I'm guessing now I have a collapsed lifter and possibly a wipped cam.
We've put probably 80 miles on it. He left his house today to bring it back to me and half way here it straightened up and ran perfect. Now it has no codes the injectors all pass a balance test I'm at a loss.
I just done 8new injectors in a 2004 f250 and now it's periodically idling messed up missing and stuff then it will clear up. I checked the icp sensor there's no oil in it and the harness has already been replaced. What can cause this code?