Either before or after y pipe, or both, depends.
The 1999 Chevy Suburban camshaft sensor is located on the front of the engine. The camshaft sensor will be behind the front engine cover.
Just unplug the electrical connector and then unscrew the oxygen sensor out of the exhaust pipe.
There is two of them uder the intake
It is located on the left rear of transfer case.
The MAP (Manifold Absolute Pressure) Sensor on a 2000 Chevy Suburban is located on the very top of the motor. It is all the way to the back of the motor. There is nothing behind it.
where is the O2 sensor on a 2002 chevy trailblazer
It has 4 of them screwed into the exhaust system/pipes.
Inside the fuel tank.
Need the engine size.
in the exhaust system
The sensor is located in the rear exhaust manifold.
where is the oxygen sensor in a 1995 gmc jimmy