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Old 09-02-2011, 03:40 PM   #1
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Check Engine Light

Hey all,

I have a 97 TJ, 4.0L, 5spd. I'm hoping to reset the check engine light. I was getting code PO132 for the oxygen sensor and I've just swapped out both the upstream and downstream sensors. I was told maybe to leave the battery unhooked overnight? Anyone know a sure fire way to reset it without having to take it to a mechanic? Thanks everyone!

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Old 09-02-2011, 05:02 PM   #2
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Unplug the battery for fifteen min.

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Old 09-02-2011, 06:38 PM   #3
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Nice, I'll give it a shot, have to head in for work now, battery is unplugged. I'll hook it back up later and see what happens! Fingers crossed!
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Old 09-02-2011, 07:46 PM   #4
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or try connecting your positive terminal to the negative post for 15 seconds.
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Old 09-02-2011, 10:05 PM   #5
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everytime it rains of i go through a big puddle my check engin light comes on, the first time i took it to get the code cleared, after that i just didnt care to spend $50 to get it cleared again so i left it and in about 2 days it shut off
every time it rains hard and im driving it come back onbut it goes out again
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Old 09-03-2011, 03:38 AM   #6
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Quote:
Originally Posted by drivers View Post
everytime it rains of i go through a big puddle my check engin light comes on, the first time i took it to get the code cleared, after that i just didnt care to spend $50 to get it cleared again so i left it and in about 2 days it shut off
every time it rains hard and im driving it come back onbut it goes out again
advanced auto has 2 actron scan tools on sale this month. one for 69.99 and the model i have for 99.99. 1 or 2 trips to get em cleared you could do it your self and be able to read the codes also. my tool will also tell ya all sorts of other diag info.
b4 i got my tool they cleared em for free but it's been a while--50 just to clear the code-really?? what a rip

Advance Auto Parts: Diagnostic Tools -
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Old 09-03-2011, 05:58 PM   #7
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Well after swapping out both O2 sensors, leaving the battery unhooked overnight and putting the positive cable on the negative terminal for 15 seconds, the Jeep fires up and the check engine light is off. I've started and driven it a hand full of times and still no check engine light. I hope this did the trick. Only time will tell I guess!
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Old 09-03-2011, 06:42 PM   #8
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Originally Posted by ShortCircuit1987 View Post
Well after swapping out both O2 sensors, leaving the battery unhooked overnight and putting the positive cable on the negative terminal for 15 seconds, the Jeep fires up and the check engine light is off. I've started and driven it a hand full of times and still no check engine light. I hope this did the trick. Only time will tell I guess!
if it doesn't come on after 250 miles....you are safe.
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Old 09-05-2011, 11:15 PM   #9
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Awesome, probably around 100 miles since and still no check engine, keeping fingers crossed!

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