Check Engine Light Again?

[2L8ULUZ2]

I am kinda new to the whole explorer thing since I just acquired my 94 Sport from my mother. I spend most of my time working on my mustang but need to fix this explorer since it's now my winter vehicle. Ok here is the problem. The check engine light is on and it is showing MAF voltage low. It was doing this last year and I replaced the MAF and it went out and then came back on with the EGR. Replaced the EGR and then the clutch went out and it set for about 6mos. Well I finally replaced the clutch last weekend and now the light is back on and saying that the MAF voltage is low again. I got another MAF for the car and have not put it on yet wondering if that is what it really needs. I have been doing some searching on here and have been reading about the fuel pressure regulator, lower intake leaking, etc and wondering if this could be an issue with mine as well. Also the O2 is still the original and has about 126K on it but is not showing a code for it. It is also having a small idle surge but not that bad and also a slightly high idle at start up about 1200rpms which leads me to believe that it might be the intake leaking/vacuum leak. I replaced the IAC just before the clutch went out so it's new. Fuel economy does not seem all that bad at the moment but that light just bugs the hell out of me. If anyone could offer some help it would be greatly appreciated. Guess I have another forum besides stangnet to browse now.

 

[Alec]

Have you tried just cleaning the MAS?

 

[Runnin'OnEmpty]

2L8, several of us here are refugees from StangNet, including myself.

Like Alex says, the MAS might only be dirty, and not faulty.

Since you've already changed it once, take a close look at the electrical connector to the MAS. Ford had a TSB on it a while back. Check the pins for tightness, loose connectors, corrosion, etc. You might even give it a shot of WD-40.

 

[2L8ULUZ2]

Well I am glad to see that I am not the only one who spends a lot of time on car forums. I have not even thought to clean the MAF. I guess if I could have applied some of my mustang knowledge to this I probably could have figured that out. I will take it apart tonight and see if it's dirty. If the pins are dirty or loose what do I need to do? Get a new connector from the dealer and splice it in?

 

[Alec]

It's probably just the filaments themselves that are dirty.