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Code135 co2 senser sencer one bank one.

(1999 Oldsmobile Cutlass)
in Toms River, NJ on January 10, 2011
i replaced the old senser with a newone.i still get the same code and the check engine light stays on?
Displaying 2 answers & 2 comments
Popular Answer
I wonder if you have replaced/identified the correct sensor. Oxygen sensors are identified by bank and sensor position. Sensor 1 is always pre catalytic converter, sensor two is always post catalytic converter. If an engine is a 4 or 6 cylinder engine the whole engine is considered bank 1, if an engine is a V6, V8, V10....., the engine bank containing cylinder number 1 (first cylinder in the firing order) is considered Bank 1, the other bank is considered Bank 2. Interpretation Oxygen sensor designation B2S1 refers to Bank 2 Sensor 1, it will be the sensor on the engine side of the catalytic converter in bank two. Check this link to determine the cylinder that contains cylinder number 1.
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on January 11, 2011
hi pat i did have the right sensor sensor#1 bank#1 thanks for your reply.I still need help in this matter.thanks again.
of C and A Automotive on January 11, 2011
Most times auto parts providers offers free scans to sell parts. Just because it shows a bad O2 sensor doesn't mean that is the problem? It may be numerous things such as tune-up, mass air flow sensor, bad fuel pressure, broken vacuum lines or bad catalyst converter? Its sometimes best to take it to your local repair shop to properly diagnos this problem.
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on January 11, 2011
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