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

bad 02 sensor. the one after the cat. sheap and easy repair if you do it yourself.

Hi thank you are both codes for this?

Estimate on time required to repair?

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?

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.