post #1 of Old 10-29-2013, 05:22 PM Thread Starter
Acesymmetric
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1999 XJ Cherokee 
 
Join Date: Oct 2013
Location: Salem
Posts: 8
POS, PITA Jeep XJ

Currently dignosing codes 0300, 0303 and 0304. Possible CKP sensor issue.

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post #2 of Old 10-31-2013, 05:25 AM
JMH21814
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1997 XJ Cherokee 
 
Join Date: Jan 2013
Location: Enfield
Posts: 297
Don't know if you've filled out your profile or not. Regardless, I'm on my phone, so I can't see it anyway. Give us some info on your jeep (I.e. ymm, engine, 4wd/2wd...) so we can help you.
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post #3 of Old 11-06-2013, 05:40 PM Thread Starter
Acesymmetric
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1999 XJ Cherokee 
 
Join Date: Oct 2013
Location: Salem
Posts: 8
99 xj

After troubleshooting everything from injectors to electrical sensors I have narrowed down my issue, with the help of a professional mechanic with an engine analyzer, to a mechanical issue with cylinders 3 and 4. I am now trying to find a good combustion chamber cleaner to see if I have some extra heavy carbon deposits blocking my valves up.
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