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Old 02-28-2013, 07:43 AM   #1
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P0155

Hi jeeple people!
I have a small problem. I have to change the O2 sensor attributed to the P0155 code, only I don't know which one it is. Can someone please post a pic of which sensor that is? Thanks!

The code popped up last week and I cleared it, but it came back, so I am replacing the sensor.
Also, Anybody know exactly which sensor I need to ask for at the parts store?
Thanks again!

Frank

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Old 02-28-2013, 07:59 AM   #2
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Rear, upstream sensor

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Old 02-28-2013, 08:29 AM   #3
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Old 02-28-2013, 06:22 PM   #4
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Hi! Thanks for the help. Can anyone actually show me a picture of where this sensor has to go in the engine compartment? Sorry, I just don't know what upstream rear is.
Thanks!!!
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Old 02-28-2013, 08:32 PM   #5
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Hey, Found it! I think. I replaced the one above one of the pre cats towards the back. Check engine light was still on when I restarted the jeep. I wasn't sure if it would reset its self so I disconnected the battery. Hopefully the code doesn't pop back up!
Thanks again for the help!
Frank
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Old 02-28-2013, 08:35 PM   #6
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Yes that was the correct one.

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