live24wheel
NAXJA Forum User
- Location
- Phoenix
I'll give ya a quick rundown on the XJ. Its a 1997 with a 4.0 and a Manual. About a year ago it overheated and warped the head. We got a head job done on it and and all put back together. Right after that the clutch went out and in the process of replacing it we yanked the wires out of the CPS. Got that all done and replaced the CPS. It ran and still runs perfectly fine but has had the check engine light on since we redid everything. We got the codes pulled, which I will list below. They mainly all have to do with misfires except one says it is not getting a Crank position signal at the CPS and that one has me stumped, well they all do because it runs perfectly fine. As far as the head goes, they had to mill it back flat and said they had to take a pretty good amount off to get it back flat. The only time it "misses" is if your in say 3rd at about 3,000 rpm and stomp the throttle it has a hesitation or "miss" and then takes off like it should. Im wondering if it had something to do with compression numbers rising or if it messed with the timing because they milled the head and maybe that is causing it. Any input would really be appreciated, I will posted this over at JeepStrokers to see if anyone over there knows as well. Here are the codes...
P0300 - Multiple Cylinder Mis-fire
P0301 - CYLINDER #1 MISFIRE
P0302 - CYLINDER #2 MISFIRE
P0303 - CYLINDER #3 MISFIRE
P0304 - CYLINDER #4 MISFIRE
P0305 - CYLINDER #5 MISFIRE
P0306 - CYLINDER #6 MISFIRE
P0320 - No RPM Signal to PCM (Crankshaft Position Sensor Signal to JTEC) - A CKP signal has not been detected at the PCM.
Thanks,
Tom
P0300 - Multiple Cylinder Mis-fire
P0301 - CYLINDER #1 MISFIRE
P0302 - CYLINDER #2 MISFIRE
P0303 - CYLINDER #3 MISFIRE
P0304 - CYLINDER #4 MISFIRE
P0305 - CYLINDER #5 MISFIRE
P0306 - CYLINDER #6 MISFIRE
P0320 - No RPM Signal to PCM (Crankshaft Position Sensor Signal to JTEC) - A CKP signal has not been detected at the PCM.
Thanks,
Tom