That would be the O2 sensor after the catalytic converter.
That should be the sensor located after the catalytic converter.
Bank 1 sensor 3 would be the O2 sensor after the catalytic converter.
Need more info, is this the 4 cylinder or 6 cylinder engine and which sensor on bank 1.
That should be the O2 sensor just before the catalytic converter.
Bank 1, on a 4.3 L engine would be on the drivers side.
Passenger side exhaust pipe directly after the exhaust manifold.
Assuming this is a V-6, bank 1 sensor 1 would be the first O2 sensor in the exhaust on the drivers side of the engine.
Downstream ... This is after the Catalyst Converter.
The 1994 S10 uses a MAP sensor, not a MAF sensor. We need to know size engine you have in that S10.
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.
You won't find one. The 1991 Chevy S10 doesn't have a MAF sensor.
does not have one just a map sensor