Originally Posted by 83 cutlass
I found the map sensor its on air cleaner the tubing looks good my question is how to check it
If its hooked up, and in place, plugged in and all, its probably OK.
You could check for trouble codes. If it has a problem it will display a code 33.
You can, if you want, unplug it while the engine is running. It should make it run worse. That would indicate that it is probably working.
just remember unplugging it while running will set a code 33.
Look here for more info on T codes.
Good info ....may help