The O2 sensors that are the closest to the engine will be the up stream ones. The ones that are further away from the engine are the down stream sensors.
It has both an up and a down stream oxygen sensor.
unscrew it
2 one in exhaust stream and one after converter! one upstream and one down stream ,doen stream oxygen sensor is in exhaust pipe after the converter. upstream sensor is ahead of converter.
were is the fuse located for the O2 sensor
2004 vw beetle up stream o2 sensor location
two possible locations if the exhaust system hasen't been altered from the oem. Left exhaust just down stream from the exhaust manifold, or just down stream from the catalitic convertor.
There are multiple O2 sensors on a 2002 Chevy truck. They are all located on the exhaust system. There will be pre catalytic converter and post catalytic converter sensors.
where is the O2 sensor on a 2002 chevy trailblazer
It depends on which sensor, O2/camshaft,etc. The O2 sensor is a straight metal sensor that is screwed into the exhaust. There is an upstream/bank1-sensor1 or down stream/bank1-sensor2 after the catalytic converter. A camshaft sensor is an L shaped, usually black sensor that is installed into the head closest to the firewall(bank1).
bank 1 is drivers side down stream o2 / bank 2 is drivers side down stream o2
on the exhaust pipe one forward and back.
it's a 5.3 litre v8