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Rough idle, engine light on but no DTC's
Good morning everyone! I have an 02 F-350 with 146K miles on the awesome 7.3L and I am having some issues. It is idling rough and the engine light is on but my code reader and the one at Oreilly's are both saying that there are no codes. it idles rough and lacks power but does start and run every time so far.
I have the Edge juice with attitude and have eliminated that from the loop so I am back to fully stock other than my BD Diesel exhaust brake and my turbo cool down timer. I have replaced the ICP sensor and that did not fix the problem. I have changed the oil and fuel filter and this did not change anything, not that I thought it would but it needed it anyway...
I am leaning toward the IPR but also I came to a light and stopped and the engine light went away and it was idling great until I went to take off and it started running like crap again and the engine light came on again. I was also sitting in my driveway and started it and the light was off and it was idling fine until I reved it up. This leads me to believe that it may be that under the valve cover connection coming loose and when I get on the throttle it wiggles enough that the connection is intermittent.
I have already put $300 in it and my plan now is to pull the valve covers and check these connections as that will be free except for my time and if this is not it then I was thinking of buying the IPR rebuild kit and hope that is not the electromagnetic sensor that is on it.
I would greatly appreciate any advise here, am I doing things in the right order here? Has anyone else had this issue? what was the fix for you guys?
Thanks in advance!
2002 F-350 7.3L Powerstroke. Bullet proof tranny by Transends, '06 tranny cooler conversion, EDGE Juice with Attitude, 4" stainless turbo back MBRP, Stage II AFE Intake, BD Exhaust Brake, BD Auto lock, BD Cool down timer, Firestone airbags with in cab gauge and controls, all to tow a 36' fifth wheel toy hauler.