It is in the air intake ductwork. It has a hose going in and out, both about four inches in diameter. It also has a three wire weather-pack connector, and is pretty fragile. So if you drop it, don't be surprised if you broke it.
It doesn't have a maf sensor.
That year did not have a MAF sensor / Mass air flow sensor.
It was a 1988 Chevy Caprice.
You won't find one. The 1991 Chevy S10 doesn't have a MAF sensor.
In the exhaust pipe, right next to the engine.
On a 1985 Chevy Celebrity the mass air flow sensor relay is located on the strut tower on the drivers side of the car. It is behind a cover. The fuse for the mass air flow sensor is also there with the relay.
On a 1994 Caprice, it is under the hood, drivers' side front under the Mass Air Flow Sensor. I don't know about a 94 but for my 95 it is underneath the dashboard in between the steering column and to the left of the ashtray.
this is NOT the mass air flow sensor but this is a 20 second fix, it is located on the tube between the air filter box and engine on the firewall side of the tube
Not MAP sensor, MAF or MASS AIR FLOW sensor. Its somewhere in the air intake flow before the injection system. Usually looks like a little screen. MAP Manifold absolute pressure sensor.
No it is not. The mass air flow sensor measures the amount of air coming into the engine. the O2 sensor measures the amount of oxygen after combustion. The mass airflow sensor is located in the air intake and the O2 sensor is located in the exhaust.
MAF stands for Mass Air Flow. it might have a bad sensor or something else. if possible take it to a Chevy dealership and have them check it out.
In front of the air cleaner, on the air induction system.