Whats up with missfire codes? - JeepForum.com
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post #1 of 2 Old 08-17-2009, 12:37 AM Thread Starter
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2001 WJ 
Join Date: Aug 2009
Location: SDCA
Posts: 8
Whats up with missfire codes?

01 grand cherokee. I did the on off on off on off code check system and it reads miss fire on all cylinders 1-6, it runs fine with smooth idle. The engine light is on and sometimes flashes. Twice the thing shut down without any warning. Is this a false read out? do I need to reset the computer. HELP!.

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post #2 of 2 Old 08-17-2009, 05:21 AM
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2006 XK Commander 
Join Date: Jan 2004
Location: Wilmington, NC
Posts: 1,438
I would certainly not try to ignore. Check your fuel pressure at the rail. Something is not right, especially if it dies.

'06 XK Limited, 5.7L, QD II, Black, 170K
'02 WJ Overland, 4.7L HO, QD, Inferno Red, 130K
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