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Rough idle
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=89686
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Author:  JHolm [ Wed Feb 06, 2019 7:44 pm ]
Post subject:  Rough idle

Very rough idle all of a sudden and a bunch of codes. Any ideas of first things to check? 330kmImage

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Author:  APC9199 [ Thu Feb 07, 2019 12:20 pm ]
Post subject:  Re: Rough idle

Has your EGR/FCV been removed or blocked off by some means?

P0403 and P1140 are for the EGR Solenoid and FCV respectively. Most people get those codes when they remove those systems and do not install a tune to eliminate them from the ECU.

The P12XX codes look like they relate to the glow plugs. Have you worked on the Jeep lately in that area?

Author:  JHolm [ Fri Feb 08, 2019 5:27 pm ]
Post subject:  Re: Rough idle

Ya my egr and fcv is gone. I just cleaned the map to see if that would help. Also a fresh tank of diesel and some 911.

Haven't done anything with glow plugs

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