techedtchr
NAXJA Forum User
- Location
- Maryland
So, would everyone be in agreement that I should go to the local Jeep dealer and purchase an OEM sensor?
Fuel pump is not blowing fuses. I'm not sure if that repair shop knew what they were doing. I just took the plunge and purchased a $35 fuel pressure gauge. I have nearly 50 psi at the Schrader valve on the rail with the key on and engine off. That tells me fuel delivery isn't necessarily the issue. Now leaning toward ignition/computer/sensor issues. Fuel pump is getting power and I'm getting fuel pressure. Also smell gas from the tailpipe. So, either have flooded cylinders or some kind of system fault. I won't have a cranking assistant for a while so I can check for spark. Thanks for checking up on me.
I would have thought "WOW, this is a long shot" but this was part of my issue on my RENIX MJ. Weeks of chasing it, 2 CPS's, til I found gas piddling out of the "wrong side" of the regulator on the rail side. I replaced with a newish junkyard FPR and o-ring. Bingo.a ruptured fuel pressure regulator diaphragm
I think the CPS is the larger issue. The point I was making is that it seems like the injectors are firing. Without spark however, can't do anything with that fuel
Well guys, got the lower bolt out and was about ready to celebrate when...I tried to get the upper bolt out. It's at quite an angle and I couldn't quite get my maze of extensions and swivels to get at the right angle. This, combined with a rusty bolt, meant that I probably stripped the bolt. So, time to get a shop involved...that or if some Jeep fan in the northeast MD/southeast PA area wouldn't mind giving me a hand
I found on mine it was easy as pie when i dropped my crossmember down and went from it under the jeep.Drop it down about 2" with a floorjack and it is right there.IN and OUT real fast.Longer to get all the stuff out and cleaned up and back in the tool box than removing the CPS itself.
Was this problem ever solved? I am having similar issue. I have Spark, and Fuel but it will not run. Unless the cylinders and plugs are dry using starting fluid with the fuel pump relay removed.
Case closed - CPS replaced and the Jeep runs great! Thanks so much for your help - you saved me a chunk o' change here - $80 for the part and $60 in shop labor and we're off to the races again!