how many sensors are there on this car on 1991 Pontiac Bonneville

i replaced the cam sensor, the O2sensor and the maf sensor and the meter. when i put the wiring back into the maf it stalled out and acted like it was going to die. i unplugged it again and it ran great. is there another sensor that i need to check or should i leave it unplugged

Asked by for the 1991 Pontiac Bonneville