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CEL---any ideas?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=30522
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Author:  CRuD Bucket [ Fri Mar 14, 2008 6:19 am ]
Post subject:  CEL---any ideas?

My CEL came on about 1000 miles ago, somewhere around 34,000. I have to take Little Mack in for a recall I've been putting off for months and I also have to get my transmission/odometer calibrated for the bigger tires. I stopped by Advance Auto Parts and plugged their generic computer in but it didn't read any codes. Before I get bent over at the stealership, anybody have any ideas on what I should expect?
Also, where the heck can I find a cool diesel theme tire cover?

Author:  Uffe [ Fri Mar 14, 2008 6:45 am ]
Post subject: 

If you can do the ignition key trick the instrument cluster will display the error codes.

To do the key trick do an on-off-on-off-on-off cycle and it will beep and display a code one at a time where your ODO sits.

If on-off cycle doesn't work, try off-ACC-off-ACC-off-ACC.

You have to shift fast between the positions, so you will feel like you raped your ignition switch.

Note that it might take more than 3 on-off or off-ACC cycles to display codes. Maybe even up to 5 cycles...don't worry, you will know for sure when you did it right.

Some with newer than an 05 have had problems with this little trick, and some haven't. Personally I think all KJs can do it, but some owners are not switching fast enough between on and off.

There is a video showing how to do it on the forums here, try a search for it and you might get lucky.

Author:  litton [ Fri Mar 14, 2008 8:41 am ]
Post subject: 

It seems that feature is disabled on the '06's though.

Author:  CRuD Bucket [ Sat Mar 15, 2008 11:23 am ]
Post subject: 

Quote:
It seems that feature is disabled on the '06's though.


Yeah, it didn't work. :cry:

Author:  CRuD Bucket [ Mon Mar 24, 2008 12:06 pm ]
Post subject: 

Just spoke with the stealership and the CEL was the airflow sensor and EGR valve---covered under warranty!
Little Mack went into limp mode last week (third time in 35,000 miles) so I mentioned that as well and they said they ran a software update on the tranny. I wonder if the oiled air filter crapped out my airflow sensor. The CEL came on within a few days of my last oiling. I put a paper filter in and I might just leave it that way. I never saw any increased performance or economy with the Proguard air filter. They never made any outrageous claims so I guess I am not disappointed. I guess I will go back through the LOST forums and read up on the EGR workaround. Sigh...

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