Cadillac Seville / Cadillac Eldorado Forum Discussion, P0135 Code.. in Past Cadillac Vehicle Discussion; I'm new to Seville forum..I have 99 Seville STS and I get cod P0135 (heater performance bank1 Sensor 1) Where ...
I'm new to Seville forum..I have 99 Seville STS and I get cod P0135 (heater performance bank1 Sensor 1) Where is this sensor location and It is difficult to change? Where to start.. Thank you very much for Hint. I'm appreciate your help...
Automobile(s): 2002.5 F55 STS, 2014 Explorer XLT 4WD
MD Eastern Shore
Re: P0135 Code..
B2S1 = left (front) exhaust manifold collector
B1S1 = right (rear) exhaust manifold, top center
B1S2 = pre-cat
B1S3 = after-cat (if no pre-cat sensor is fitted, then the after-cat becomes B1S2)
B1S1 is absolute murder to change. Over the top of the engine using extensions and either a crow's foot or special O2 sensor socket. Good luck.
Please go back to your original post in the Lounge and follow the advice for updating your login. Consider either subscribinbg your car to www.alldatadiy.com or obtaining a real GM service manual set from eBay or www.helminc.com . Read all the sticky posts at the top of the threads in each forum of interest. Study the entire Cadillac Technical Archive way up ^^^ in the top black bar. You have a LOT to learn about this car and its special needs.
Submariner 408 ,Thank you for your advice ... So If I have special O2 sensor socket, and technical knowledge will be OK. B1S1 is on top of manifold in rear of the engine? I see that I have a lot of space to work...