There are several O2 sensors on that vehicle and they are all threaded into the exhaust system at various points.
The coolant temp sensor on a 2003 Chevy S10 V6 is located on the front of the intake manifold. To replace simply unscrew the old sensor and screw on the new one.
It is threaded into the header pipe directly after the exhaust manifold on the passenger side.
After the catalytic converter.
2.2l is behind cat converter
It's a code for the oxygen sensor.
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.
Downstream ... This is after the Catalyst Converter.
it should be located on the front exaust pipe before the cat converter.
The 1994 S10 uses a MAP sensor, not a MAF sensor. We need to know size engine you have in that S10.