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P0299 and P0401
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=80451
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Author:  MOSFET [ Mon Oct 20, 2014 8:40 am ]
Post subject:  P0299 and P0401

I have the following codes that just appeared, P0299 and P0401.

Does this mean I need a new EGR and FCV?

Could there be any other causes? The Jeep drives and runs great. The only indication of a problem is that the MIL is on.


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Author:  MOSFET [ Tue Oct 21, 2014 9:33 am ]
Post subject:  Re: P0299 and P0401

The MIL went off today. I wonder if it fixed itself?


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Author:  Hexus [ Tue Oct 21, 2014 10:41 am ]
Post subject:  Re: P0299 and P0401

Nothing on this $#@@$# Jeep fixes itself, LOL.

Be prepared for future issues.

Author:  papaindigo [ Tue Oct 21, 2014 11:12 am ]
Post subject:  Re: P0299 and P0401

If a fault is detected a code is set and when appropriate, don't ask me but I know some codes don't trigger a MIL/CEL, the MIL/CEL comes one. If the fault is a one time thing then after like 3-5 drive cycles the MIL/CEL will go off and IIRC the code clears.

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