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1999 Ford Expedition MAF

Tiny
GOLFJFOX10
  • MEMBER
  • 1999 FORD EXPEDITION
Engine Mechanical problem
1999 Ford Expedition V8 Four Wheel Drive Automatic

Hello, I have a 1999 Ford Expedition and the mass air flow sensor went bad. I replaced it and running about 60 percent better after driving it around block. I was told that it might take time for the computer to react to the change. So I reset the computer by unpluging the battery. The service light went off. So I drove it around the block again and still running about 60% better. Will it take some time for the computer to reset?
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Tuesday, August 17th, 2010 AT 8:05 PM

4 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The computer does have to adapt but nothing to that degree. Now that you have cleared the computer, your going to have to wait for it to find problems again.
Do you happen to be using a K&N filter?
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Tuesday, August 17th, 2010 AT 8:25 PM
Tiny
GOLFJFOX10
  • MEMBER
  • 3 POSTS
[q
not sure what kind of filter, but it was clean. White filter with orange rubber rim.

Uote="Wrenchtech"]The computer does have to adapt but nothing to that degree. Now that you have cleared the computer, your going to have to wait for it to find problems again.
Do you happen to be using a K&N filter?[/Quote]
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Tuesday, August 17th, 2010 AT 8:49 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
A K&N is a reusable filter that is oiled for dust but the oil contaminates the MAF.
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Tuesday, August 17th, 2010 AT 8:52 PM
Tiny
GOLFJFOX10
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Thank u
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Tuesday, August 17th, 2010 AT 8:57 PM

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