That truck has 4 o2 sensors, there are two catalyst converters on this truck as well. Bank one (Driver side), bank 2 (passenger side), sensor one is before the catalyst converter , sensor 2 after. There are two catalyst converters on this truck as well. Follow the exhaust system back from the engine and you will find them. A scan will tell you which one you are looking for.
where is the secondary 02 sensor on a 2004 crv
Yes.
After the catalytic converter.
02 sensor circuit, no activity detected (sensor 1)
YES
It don't have a fuse for the 02 sensors.
The 2002 Chevy Cavalier 02 sensor can be found attached to the air cleaner housing. The O2 sensor will be on the back side of the air cleaner housing.
no chevelle was ever made in 87.
Most likely NOT.
Answerp0137 or p0147 if it's the heater circuit.
That is the pre - cat 02 oxygen sensor.
I hate to answer a question with another question, but what do you mean... How do I wire it?