2002 Ford Explorer Maf Sensor signal

INSPECTOR BILL

MEMBER
2002 FORD EXPLORER
6 CYL
4WD
AUTOMATIC
67,000 MILES

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

4 Replies

MERLIN2021

MECHANIC
17,250 POSTS

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

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Saturday, June 28th, 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?

Was this

answer

helpful?

Yes

No

Sunday, June 29th, 2008 AT 12:25 AM

MERLIN2021

MECHANIC
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.

Was this

answer

helpful?

Yes

No

Sunday, June 29th, 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

Was this

answer

helpful?

Yes

No

Sunday, June 29th, 2008 AT 2:38 PM