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Getting code p0140 no activity bank 2 sensor - Alero Oldsmobile Cars & Trucks

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This sounds like a 02 oxygen sensor, they are normally located into the exhaust pipe, and normally before the catalytic converter, they will be screwed in to the exhaust and will have a wire connected to them, i would check the wire to the sensor first to make sure that it is still connected, if it is ok, then i would replace the sensor, you will need a oxygen sensor socket and ratchet, or possibly a breaker bar along with the socket to get the sensor out, sometimes, these are pretty tight, you can purchase the sensor socket at a auto parts store , if you don't already have one. hope that this information has helped you. the socket that i have is a 22 mm.

Posted on Apr 07, 2011

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This is a oxygen sensor code no activity bank 1 sensor 2. so the oxygen sensor on the #1 cylinder side after the catalyst needs to be replaced. it is located on the exhaust pipe after the catalytic converter

Posted on Apr 07, 2011


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