I have a 97 grand Cherokee that has P0132 code coming up and jeep is intermitently running lean on gas. Do I need to change both sensors ? Pre and post sensors? obviously I will ensure wiring is not faulty first. I will get OEM sensor since I get discount from stealership! Any advise would be appriciated. I usually do the work myself, but due to an illness I have to bring to a garage. I dont want to spend unessesary $$$ in labor or parts.
THX
MJ

 

P0132 (M)
O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
Oxygen sensor input voltage maintained above normal operating range.


...from what I've just read, its most likely the pre-cat 02 because it is subjected to more direct heat and tends to fail first. If I were you I'd probably want to save yourself a headache later and just change both.

 

Thanks for the info! I changed one upsteam sensor. I got OEM part reg $133, my price $107 and it runs like a charm! Sensors are very expensive and changing one has resolved the issue!
Thanks for the feedback, it was very helpful !!

 

good stuff, glad it worked out for you.