The upstream O2 sensor is mounted in the ehxaust manifold The downstream O2 sensor is mounted in the exhaust pipe after the catalytic converter
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter
The upstream heated oxygen sensor is located ahead of the catalytic converter The downstream heated oxygen sensor is located behind the converter
on the rear of the engine just below the coils
where is the oxygen sensor located on a 1997 Chevrolet lumina
i had it looked at and they said it was the oxygen sensor could that be the problem if so how hard is it to change.
In the exhaust pipe
Hi , hope you can help me. Can you tell me where the oxygen sensor and the EGR valve are located on my 1997 Buick LaSabre. Thanks
one before the cat and one after
Oxygen sensor number two would be screwed into the exhaust either after or in the side of the catalytic converter.
Which o2 sensor are you looking for? The rear located near gas tank?
Inside the exhaust. there are two on each side.
It is behind the engine, after the catalyst.