mass air sensor, different in later models or in between

[CoSpringsMx-3]

Is the mass air sensor, different in models later than the 92? are they different in the rs and gs? I have seen a couple that it looks like the air sensor is a round black piece that has the plug in. My 92 rs has a metal one that is round on the throttle body end and square on the air filter box end. Thanx for the help.

[mxcess]

The kind that we have (the square metal one) is the door type MAF. It is a small door that is hooked to a variable sensor that opens and closes with the amount of air that is going thru it. The other type is either a cone type MAF (same principle, but uses a cone instead of a door, hence the round appearance) or a hot wire MAS. The hot wire one heats a small wire in the direct path of incoming air and measures the amount of voltage used to keep the wire at a certain temp. The more air passing the sensor the cooler it tries to get, which means more volts to keep it at temp. I hope this helps clear up your ?. Sorry, but I don't know which models used which one, just know that the '92 rs uses the door type MAF. Sorry so long, but you just had to ask didn't you!