2002 Ford Explorer Maf Sensor signal

2002 FORD EXPLORER

67,000 MILES • 6 CYL • 4WD • AUTOMATIC

INSPECTOR BILL

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Is the MAF sensor on my explorer sending a voltage signal or a frequency to the PCM? Which one of the wires is sending the signal to the PCM. There are 6 wires, they are L-R
1- Grey
2- Blue w/ red stripe
3- Grey w/ orange stripe
4- Black
5- Purple
6- Grey w/ red stripe

Jun 28, 2008 at 3:43 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

MERLIN2021

AUTOMOTIVE REPAIR CONTRIBUTOR
17,250 POSTS

There are a few I will post, go by the shape of the connector, and the number of wires...

Jun 28, 2008 at 5:19 PM

INSPECTOR BILL

MEMBER
3 POSTS

Thanks Merlin
The pics help me with identification of the wires. The first part of the question though, is the MAF sending a voltage or a frequency based signal back to the PCM?

Jun 29, 2008 at 12:25 AM

MERLIN2021

AUTOMOTIVE REPAIR CONTRIBUTOR
17,250 POSTS

I would say voltage, no testing that I know of instructs us to test for radio freqquencies! Testing always invloves volts, amps, or ohms...

Jun 29, 2008 at 11:24 AM

INSPECTOR BILL

MEMBER
3 POSTS

Thanks again Merlin- I have read so many things trying to get an answer. In more than one instance I've read that some MAF sensors send a frequency back to the computer. I was searching about MAF sensors in general trying to find the info.
Thanks again Merlin.
Bill

Jun 29, 2008 at 2:38 PM