stumbling idle after warmed up - Page 3 - JeepForum.com

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post #31 of 36 Old 08-24-2013, 02:14 PM
ZeeJay1997
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1997 ZJ 
 
Join Date: Dec 2008
Posts: 8,664
Quote:
Originally Posted by JaneLee View Post
remove the o2 sensor
if you havent disconnected the o2 sensor, nevermind about checking the ignition system. the object is to get it out of the sensor circuit to make the PCM use default fuel strategy.

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post #32 of 36 Old 08-25-2013, 08:47 AM Thread Starter
JaneLee
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1994 ZJ 
 
Join Date: Aug 2013
Location: Richmond
Posts: 35
i previously disconnected the o2 sensor with no issues found before i unscrewed it to test the CAT. It threw codes for every injector. I did look at the ignition coil and guess what? It does have a large crack in it. It does get very hot when the engine warms up and starts it's tricks. Problem found? previously had a buddy look at it and he missed it, now he thinks that's probably the problem?
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post #33 of 36 Old 08-25-2013, 08:50 AM
ZeeJay1997
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1997 ZJ 
 
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Quote:
Originally Posted by JaneLee View Post
Problem found?
Yes, that would be reason for replacement. Whether or not it is your only problem, on the ZJ will divulge those secrets.
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post #34 of 36 Old 08-25-2013, 08:56 AM Thread Starter
JaneLee
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Location: Richmond
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ok lol Will see then thanks
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post #35 of 36 Old 08-29-2013, 09:19 PM
wwilly1968
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1993 ZJ 
 
Join Date: Jan 2012
Location: walker
Posts: 11
ok

Last edited by wwilly1968; 08-30-2013 at 05:24 AM.
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post #36 of 36 Old 08-29-2013, 09:28 PM Thread Starter
JaneLee
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1994 ZJ 
 
Join Date: Aug 2013
Location: Richmond
Posts: 35
OK guys. replaced the ignition coil, y'all were right. it was cracked motor side and bad. now she's happy. thank you guys so much
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