Whats up with missfire codes? - JeepForum.com
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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Whats up with missfire codes?

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Unread 08-16-2009, 11:37 PM   #1
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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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Unread 08-17-2009, 04:21 AM   #2
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2006 XK Commander 
Join Date: Jan 2004
Location: Wilmington, NC
Posts: 1,422
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 Hemi, Quadra-Drive II, Black, 118K Miles
'02 WJ Overland, 4.7L HO, Quadra-Drive, Inferno Red, 98K Miles
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