Car stalls with the MAF sensor installed. Unplugged, it runs pretty well but sets off the SES light and I noticed a slight pulsation while up to speed that I didn?t get before all this happened.

Got a new MAF sensor (cardone) and the car stalls the moment you put it in gear.

Tried cleaning the original, no dice. Tried pulling one out of the junkyard, cleaned it, still bad.

What else could it be? I?m not exactly an electrician but I have a multimeter if there?s voltages I should be seeing at the various pins on the pigtail.