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Old 04-07-2012, 05:11 PM   #1
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Question check engine code 1999 wrangler ?

Hi, I did the on-off-on-off-on and got a code that read 0010.1 in the odometer. the jeep seems to be running fine, anyone know what this means and should I have waited for more codes? Thx.

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Old 04-07-2012, 05:22 PM   #2
G54
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That doesn't sound right. Go to Auto Zone or the like and they will put it on a diagnostic for free. If you've never changed your O2 sensors (you have 2) it could be the upstream or downstream gone bad. I had to do both on my '99 recently.

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Old 04-09-2012, 09:08 AM   #3
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check engine codes

Thanks, it turned out to be the gas cap and so i tightened it up plus reset the computer and so far so good.
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Old 04-09-2012, 04:57 PM   #4
G54
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Quote:
Originally Posted by pberg View Post
Thanks, it turned out to be the gas cap and so i tightened it up plus reset the computer and so far so good.
The simplest thing and I didn't think of mentioning first.

I guess because with my junk it's NEVER the simplest thing!
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