05 TJ 6 speed. 4.0. Question is could a stopped up fuel sock happen to throw misfire codes and 02 lean codes? Just randomly dies going down road. I've replaced all sensors that gave me codes. Reset PCM and throwing same codes and still doing same thing. Thanks for any inquiry on this. -JLP
Exactly what sensors have you replaced? The first thing I think of when someone says their engine randomly dies is the CPS (crankshaft position sensor). After the CPS, I start wondering about the fuel pump itself.
I strongly doubt the problem is being caused by a clogged fuel filter or fuel pump pre-strainer/sock.
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Okay so the jeep is still at the mechanic. I do not feel as stupid now because he is a well known mechanic. He cannot seem to figure it out. Jeep fuel system is good. Jeep will idle all day long. Take off it sputters and stalls. It does it now at low speeds where used to it did it going at hwy speeds. He did say he wanted to put a scope in and look around crankshaft. He said for some reason cps is not getting any signal causing this issue. I put a cps sensor in it and so has he. Still has same issue!!!! What now? What's next? Computer?
Let me ask this dumb question, ok, if the jeep does not have the factory key (chipped) would this cause this? I bought the jeep used and I got two keys with it in which were not originals and did not contain chip. Bought I from a dealer. I was wondering if this is the case how did it run flawless on the way home? I think i maybe onto something but I don't know!
Just learned today the jeep I bought has an aftermarket stroker motor. Mechanic talked like he believes it is the jeep PCM needing to be reprogrammed and reflashed. I hope this solves all of my issues with the jeep because nothing else has worked as of yet to get it running correctly.