You have 2 O2 sensors on that vehicle. They are both threaded into the exhaust system, one before the catalytic converter and one after the catalytic converter. Bank 1 sensor 1 is the O2 sensor before the catalytic converter.
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The Exhaust Manifold Oxygen Sensor needs to be replaced.
no
It is behind the starter, You will have to remove starter to service it,
ON the side of the motor behind the starter.
How do you unplug an oxygen sensor on a 2003 Chevy Cavalier
on back of engine behind the flex plate.
The TSP sensor on your 2003 Chevy Tahoe is located on the back of the transmission.
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The sensor is located behind the intake positioned just like a Chevy distributor. There is some wires coming off of it.
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