I have a 1987 2.8. The car was stalling and I unplugged the maf and now the car runs better than ever. I have two questions.

1. Can I just delete the whole maf circuit?
2. what exactly happens when the maf is unplugged? like what does the ecm see?

 

The maf tells the ecm the density of the in coming air, so something is causing it to tell the ecm false info.
If you don't have a maf, it'll never run right. When its unplugged, it goes into limp mode, alot of fixed parameters.
Any codes?

 

ok do you know exactly what limp home mode is? i mean is there anywhere i can go to find out what values are involved in this limp home mode? i swear my car runs fine.

 

Best thing to do is replace the MAF. No, you can't delete it. Only way to switch to a MAP is to swap harnesses and ECM's with a 90-92 car, and I advise against doing so due to problems with the ignition in the 90-92 harnesses.

DO NOT GET A CHEAP PARTS STORE MAF UNLESS YOU PLAN ON REPLACING IT IN A YEAR OR SO. The Delco ones WILL cost more, but there are differences in sensor construction that make this NECESSARY.