It's in the exhaust. It screws into the catalytic converter.
Upstream is just after the exhaust manifold, and downstream is after the catalytic converter
Your MIL ( malfunction indicator light ) will be lit and a code for your O2 sensor will be logged.
Sensor 2 is after the catalytic converter.
Should have 2. Follow your exhaust from the headers back. They'll be after the headers but before the muffler
Not that I've ever heard. It would be a lot easier to reinstall one.
That is located on the back top side of the catalytic converter, right where the outlet tube leads to the muffler.
location of relay for heated o2 sensor 1999 jeep Cherokee sport
It does not have CO2 sensors. It has O2 sensors, four in total. One before and one after the catalyst on each side of the engine.
In the exhaust pipe.
The downstream O2 sensor will be either on or just after the catalytic converter, look on the passengers side, under the Jeep, above the big skid pan in the middle of the Jeep.
That engine is a straight six cylinder so follow the exhaust pipe from the engine exhaust manifold to the first sensor you see threaded into that pipe, that would be the bank 1 sensor 1 o2 sensor.