There is 2 of them and there both underneith the intake manifold. You can't see them are get to them until you remove the intake.
never it should out last the engine
Out of time or carbon buildup. Purchase a can of Seafoam Engine Treatment and follow the directions to remove carbon buildup.
If it has one it would be driven off of the accessory belt.
just to the right of the oil filter
No it will not, not even close.
where is the mass air flow sensor located on a 2001 chev Monte Carlo
Fuel Pressure: ( Key on, engine off ) 60 to 66 PSI
yes, HEI distributor
YES.
yes
No.
The air filter is in the air box on top of the engine. Disconnect the air intake from the fender, then the wiring to the sensors. The box can now be removed and the filter changed.