catfSSh

iTrader: (1)

Alright i just bought a 2000 camaro ss and the other day the check engine light came on. Well i took it to Advanced Auto to have a free diagnostic test run. The code for the problem was PO 141.

Looked it up in the Haynes Repair Manual and it is a post converter left side oxygen sensor. Replaced it with a Bosch sensor and took out the pcm batt fuse and reset the pcm by takin off the negative battery wire and now when everything is reconnected and the car is warmed up, the light is still on.

My questions are could their diagnostic be wrong? By left post converter do they mean driver side or passenger side sensor ( i replaced the driver side) also i made sure it was the sensor farthur down the exhaust manifold past the cat converter. Could the fact that i put 91 octane instead of 93 affect it? Or should i just wait and see if the light goes off.

any advice is appreciated.

thanks

APeteSS

don't worry about the 91, my car hasn't seen 93 since '00. What was the malfunction? heater open? switching?

catfSSh

iTrader: (1)

the diagnostic just showed the code for a bad oxygen sensor

P Mack

iTrader: (6)

PO141 is drivers side (bank 1) post cat heater performance. Wrong forum by the way.

catfSSh

iTrader: (1)

i kinda thought it might be the wrong forum but i figured people in here were smarter. move it if need be.

as for the po 141 what exactly does heater performance mean?