Jeep Repair Problems? Ask a Mechanic for Answers ASAP
Hello welcome to JustAnswer, My name is Brad and I will be assisting you
Have you checked fuel psi?
Also is the check engine light on?
Do you have a fuel psi guage to check the fuel psi?
yes,i did. at 55 psi
Does it misfire all the time?
yes,seem like something is cutting out the coil,checked the wire going to the pcm that controls the ground for coil and it has voltage on it.
The PCM controls the ground pluse width to coil.. ASD Relay provides 12v.. If there is voltage on wire from PCM there is something wrong..
going by my wiring diagram it should be the ground right?
checked the wiring at the coil
one has 14 volts on it and the other has about 7 volts
the other one should be ground?
so thats why i checked it at the pcm. yet,it still has voltage on it
If the Gray and white wire has voltage on it.. The PCM is faulty
replaced the pcm
The new one is fauty then, or the wire is shorted to voltage somewhere..
k,so can i cut that wire at the coil,run a new one to pcm?
You can try that... or just cut the wire at PCM and make sure it has ground coming out of PCM..
k,let me try that
Ok post back your findings and we can go from there.