1994 Ford E-Series Van MAF

Thank you for your reply. Followup question. If all three wires goes to the computer, then is it probable that I purchased from NAPA a MAF Sensor that is bad too? My sensor is the type that uses a vacuum line and the plug. Nothing goes insite the sir cleaner. I have traced the vacuum line and it is working. When I disconnect the battery cable it resets the computer and I am good to go for another 30 miles or so. The local garage could not isolate the problem. I read on your site how to check the codes using a test lite. They seemed to be a little lacking in knowledge doing the old fashion way of the mechanic. Without the scanner they seemed lost.

I just bought a new one from NAPA and it is doing the same thing as the old one. If this plug goes directly to the computer, then the computer is reacting to just this device, it would seem because when I unplug it, the clicking sound ends and the idle revs up and is smooth. I tryed just for curiosoty to put it in gear and try to drive it out my driveway and it was very powerless. Plug it back in after disconnecting the battery cable and the problem goes away for approximately 30 miles. Shoudl I take this back to NAPA and get a replacement

Thank you for your prompt reply. It was appreciated.

Is a MAF Sensor and MAP Sensor two different parts?

Oh, where is the MAP Sensor located then? I have been replacing the MAF sensor only that uses a vacuum line. Maybe I am replacing the wrong part

So it seems like I am purchasing the wrong part. I am a computer tech, but do have some limited mechanical knowledge.

I sholdl probably replace that sensor since I already replaced the sensor sitting on the air clearner assembly the one with the vacuum line running to it.