deproson
NAXJA Forum User
- Location
- california foothills
So to start I have a 2001 Xj 4.0 auto 4WD.
I have been chasing multiple issues for months now and still I am not any closer to solving the issue.
I have a loss of cam or crank sensor code along with ignition coil circuit A B C performance.
My xj will run for about 30 seconds and then stall. When I say it runs I mean it runs at an idle fand fluctuates from about 300 rpm to about 850 rpm and dies after about 30 seconds. I have replaced the cam and crank sensor with Oem parts. That did not resolve the issue. I replaced the coil assembley, that did not fix it. I have continuity tested the whole engine harness and have found no issues with it.
I found a good deal for a engine harness and a known good ecm and I bought those and swapped them out and still no change.
I have also changed the timing chain set due to the higher mileage of my xj (260,000) miles.
I am a diesel mechanic by trade I know that the timing set was done correctly.
I know that the cam and crank are in sync. (Verified with snap on Zeus)
I did however make an observation while I had it connected to the snap on scanner, it would show while KOEO a status window that would say “sync ok” then switch to “not in sync”. I’m not that familiar with Jeeps and how they do things but to me that does not seem correct.
I’m running out of ideas and where to look. I feel like I’m chasing my tail. Any help with this would be greatly appriciated. I love my Jeep but after almost nine months of chasing this issue I’m about to give up and find a different Jeep.
I have been chasing multiple issues for months now and still I am not any closer to solving the issue.
I have a loss of cam or crank sensor code along with ignition coil circuit A B C performance.
My xj will run for about 30 seconds and then stall. When I say it runs I mean it runs at an idle fand fluctuates from about 300 rpm to about 850 rpm and dies after about 30 seconds. I have replaced the cam and crank sensor with Oem parts. That did not resolve the issue. I replaced the coil assembley, that did not fix it. I have continuity tested the whole engine harness and have found no issues with it.
I found a good deal for a engine harness and a known good ecm and I bought those and swapped them out and still no change.
I have also changed the timing chain set due to the higher mileage of my xj (260,000) miles.
I am a diesel mechanic by trade I know that the timing set was done correctly.
I know that the cam and crank are in sync. (Verified with snap on Zeus)
I did however make an observation while I had it connected to the snap on scanner, it would show while KOEO a status window that would say “sync ok” then switch to “not in sync”. I’m not that familiar with Jeeps and how they do things but to me that does not seem correct.
I’m running out of ideas and where to look. I feel like I’m chasing my tail. Any help with this would be greatly appriciated. I love my Jeep but after almost nine months of chasing this issue I’m about to give up and find a different Jeep.