Could map sensor cause 94 cavalier to die then not start?

Answer 1

Map sensors can do some strange things. Most of the time the "limp home" mode will allow the car to run even if it does go bad. AutoZone will test that Map sensor for free. It will at least give you a place to start. There are several things that could cause your problem. Is the "check engine" light on?? yes the check engine light came on.

Ok....If you know how to do it, you can pull the codes yourself. The diagnostic link is mounted right next to the fuse box...just to the right of it. Mine is mounted verticle. There are two rows in the plug in. The upper two on the left row can be jumped. If yours is mounted horizontally, it's the upper row, right two. Take a paper clip or any type of small wire and insert each end into those two. Now, turn on the key....but do not start it. The check engine light will start to flash. The first code should be flash....pause flash flash. That would be a 12. That is just showing the ECM is in diagnostic mode. Each code flashes 3 or 4 times. Write them down. You can look up what the codes mean on the net or most any parts store can tell you. It's not as precise as the newer OBDII cars, but it will give you a place to start looking.....Hope that helps.