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94 Ford Explorer. Mass air flow sensor.

Discussion in 'Stock 1991 - 1994 Explorers' started by Podpunk77, December 28, 2010.

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    1. Podpunk77

      Podpunk77 New Member

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      City, State:
      Wichita Kansas
      Year and Model:
      1994 XLT
      Last Christmas my explorer died on me and it was becasue one of my after market battery cable had come loose on the battery. I fixed it and that is when it started running like it was chugging for air. Nothing super bad just a little bit. I replaced the battery cables, the spark plugs, the air filter and it was getting worse. now I would push the gas and sometime is would go some times it wouldnt almost like I blew a header or 2. I took it to a shop to get it looked at and after $200 they told me it was the Mass Flow Air Sensor. I told them I would replace that my self to save myself another $100+ more. The new MFAS didnt fix anything how ever with it unpluged it runs great except now im only getting about 10-11mpg.

      Any one have any ideas on what could be causing this?
       
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    3. BrooklynBay

      BrooklynBay Staff Member Moderator Elite Explorer

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      City, State:
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      Year and Model:
      88 89 93 95 96 Aerostars
      Welcome to this forum! I've moved your thread into the stock 91-94 section. Did you originally have a code for a bad mass air flow sensor? Was the new part the correct replacement for the old one? Did you compare both part numbers?
       
    4. walterd140

      walterd140 Active Member

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      City, State:
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      Year and Model:
      '94 Sport
      Check for an open vacuum line. They have a habit of blowing off the tree. Also check the line to your brake booster on the fender
       

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