There are 2 sensors on this vehicle. Check youre exhaust pipe from the manifold down. Easy to locate--they look like a spark plug but have a wire attached to them. If youre vehicle idles real rough, youre EGR valve needs cleaning. Shops will tell you that you may need a new one but I was able to clean mine. Not sure you can clean 02 sensors.
2.2l is behind cat converter
It's a code for the oxygen sensor.
the fuel level sensor is located in the fuel tank with the fuel pump
That is True.. A faulty speed sensor will cause no shift or late shift..
what is the wiring diagram for the o2 sensor on 2000 s10 blazer. it has 4 wires. what what do they all do /
That vehicle has several oxygen sensors and they are all threaded into the exhaust at various points.
Bank 1 sensor 3 would be the O2 sensor after the catalytic converter.
The check engine light would come on.
No.
Downstream ... This is after the Catalyst Converter.
IAT sensor 1 circuit high input. Check to see if the Intake Air Temperature Sensor is unplugged.
it should be located on the front exaust pipe before the cat converter.