Join Date: Nov 2006
Location: south arkansas
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im have the same prob with my early 04(icp at rear). the code (p2286 & P2287) will clear itself after a few days then show up again. i hooked the engine up to a reader and found the icp output voltage was around 5v at idle when it should have been around 1v. also noticed at times under a wot run the icp output voltage would jump back and forth wildly from around 1.9v to 5.07v, i would think under wot the icp voltage should stay somewhat steady around 5v. also noticed injector timming was off too. im guessing the bad signal from the icp going to the ficm is causing the ficm to wig out. the truck starts ok and runs ok, havent noticed any misses or smoke, the only thing i have noticed is the fuel milage has dropped about 5mpg.
had a response to my earlier post about trouble codes telling me it was the wire harness. i havent had time to check it yet, and not looking forward to doing it either. looks like i have to remove the turbo, degass bottle and other stuff up top to check it. i guess fixing a bad wire is alot cheeper than replacing the sensor, i just hope the icp isnt bleeding oil.
early 2004 f350 cc kr fx4 lwb 6.0 auto 130k miles
4" turbo back ss magnaflow w/kitty toss
rotella t6 5w/40 rev-x
sct tsx with eric's tunes