mark is on the right track its not you map becuse its working in reverse in general your maf has a plug in and a vacumn hose which connects on the bottom normally on a good system when you unplug it (wire plug) the engine will stall if you unplug the vacumn hose it will run rough so a short in the harness youll need a manual to see exactly which other components are in line if its not a short id check the egr valve if its plugged it'lld choke the air supply and woul make sense an unplugged maf would make it breath better check tho with it running take a dollar bill and hold it at the tailpipe it should blow away from pipe when normal if running rough and the dollar sucks back like trying or succeding to be sucked inside the pipe the you have a burnt exaust vaule which would also effect your maf but your problem is not the maf somrthing else is goofy matbe some good will come of this discriptions are hard to interpet if all else fails MR. Goodshaft good luck
Sounds like MAP sensor/harness may be bad, too. Since you didn't say what kind of car, maybe you should take it to a tech. that can see what he's working on, and come up w/ better diagnoses.
not sure
My check engine light is on. I had a friend scan the car and he said it was the mass airflow sensor. One thing that led him to believe this is because the MAF sensor was disconnected and when we connected the plug back to the MAF the engine would turn off. I replaced the MAF and its doing the same thing. he scanned it again and gave me the codes that came up. The codes are
p0100: mass air flow, flow circuit.
p0110: intake air, temp sensor. and
p0105: manifold absolute , pressure BARO circuit.
he also mentioned that those three codes repeated having a total of 6 codes.
Now he thinks it might be the computer.
what is your opinion on this?
