In a 2004 Pontiac Sunfire, there are two oxygen sensors. One would be located in the exhaust before the catalytic converter. The other is located in the exhaust after the catalytic converter.
2003 sunfire
It depends on which o2 sensor.
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 oxygen sensor is mounted in the exhaust manifold The downstream oxygen sensor is mounted in the exhaust pipe after the catalytic converter
on the back of the motor wright below the crank sensor
where is the location posslook sensor three wires , 2000 pontiac sunfire
The 2001 Pontiac sun fire speed control sensor is located on the front passenger wheel. The sensor can be found on the inside of the rotor.
I need to know how to remove a rear wheel speed sensor on a 2002 Pontiac Sunfire
I am not sure exactly where the oxygen sensor(s) would be located, but the location that is generally chosen is upstream of the catalytic converter and close enough to the firewall for shorter wires to be routed from the wiring harness.
on the 2.4 its to the left of the starter above the oil filter
The oxygen sensor is located in the exhaust manifold near the firewall. It is easier to get to the sensor from under the vehicle.