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Codes PO138 & PO141

Old 09-17-2013, 01:34 PM
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Default Codes PO138 & PO141

Hi, I have a 2000 Jeep Cherokee 4x4 the check engine light is on and I need to get it smogged. It failed a smog test in Calif. It was scanned and this info and these codes came up:
PO 138 02 sensor circuit high voltage bank 1 sensor 2
and code PO 141 02 sensor heater circuit bank 1 sensor 2
I need to get it fixed and I just don't want to get ripped off. Any help on what it is and what it may cost? Does anyone know if this sounds like it could be a major repair over $500? Any help greatly appreciated. Thank You.
By the way i tried to post in the ask a question thread and an error kept coming up hope it is ok to post this here. Thanks

Last edited by Jeepsfan; 09-17-2013 at 01:42 PM.
Old 09-17-2013, 01:44 PM
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bad 02 sensor. the one after the cat. sheap and easy repair if you do it yourself.
Old 09-17-2013, 01:47 PM
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Hi thank you are both codes for this?
Old 09-17-2013, 01:49 PM
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Estimate on time required to repair?

Last edited by Jeepsfan; 09-17-2013 at 02:02 PM.
Old 09-17-2013, 01:49 PM
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Yes, bank 1 sensor 2 always means after the cat. Bank 1 sensor 1 is before
Old 09-17-2013, 01:52 PM
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Originally Posted by jake92
Yes, bank 1 sensor 2 always means after the cat. Bank 1 sensor 1 is before
Thank you. In your opinion, is it plausible that a mechanic would charge over $500 to repair this?
Old 09-17-2013, 03:40 PM
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Originally Posted by Jeepsfan
Thank you. In your opinion, is it plausible that a mechanic would charge over $500 to repair this?
Wait, I see you are from Commiefornia. Do you have an exhaust that looks like the one in the pic. If so, the plot thickens.




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Old 09-17-2013, 04:58 PM
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Originally Posted by CCKen
Wait, I see you are from Commiefornia. Do you have an exhaust that looks like the one in the pic. If so, the plot thickens.




I have to get it lifted to look under it. Will come back and reply. Thanks for your attention to detail. Give me a little time will get back after i find out.
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