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Old 09-17-2013, 01:34 PM   #1
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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.
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Old 09-17-2013, 01:44 PM   #2
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bad 02 sensor. the one after the cat. sheap and easy repair if you do it yourself.
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Old 09-17-2013, 01:47 PM   #3
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Hi thank you are both codes for this?
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Old 09-17-2013, 01:49 PM   #4
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Estimate on time required to repair?

Last edited by Jeepsfan; 09-17-2013 at 02:02 PM.
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Old 09-17-2013, 01:49 PM   #5
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Yes, bank 1 sensor 2 always means after the cat. Bank 1 sensor 1 is before
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Old 09-17-2013, 01:52 PM   #6
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Quote:
Originally Posted by jake92 View Post
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?
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Old 09-17-2013, 03:40 PM   #7
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Quote:
Originally Posted by Jeepsfan View Post
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.




Click the image to open in full size.
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Old 09-17-2013, 04:58 PM   #8
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Quote:
Originally Posted by CCKen View Post
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.




Click the image to open in full size.
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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