MAF Sensor
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Northstar Engines and System Technical Discussion Discussion, MAF Sensor in Cadillac Engine Technical Discussion; I just got my car back from my mechanic after having work done on the hydraulic pump control unit (whatever ...
  1. #1
    96Deville is offline Cadillac Owners Member
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    MAF Sensor

    I just got my car back from my mechanic after having work done on the hydraulic pump control unit (whatever that is) to solve a persistant TC0047 code. Now I have a constant SES light and a p0102 code - mass air flow (MAf) sensor circuit low frequency. Are there any easy fixes for this condition?

    96 Deville
    126000 miles

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  3. #2
    davesdeville's Avatar
    davesdeville is offline Banned
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    Re: MAF Sensor

    You could try cleaning the hot wire MAF element.

  4. #3
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
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    Re: MAF Sensor

    Very very gently with a cotton swab & alcohol.

  5. #4
    96Deville is offline Cadillac Owners Member
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    Re: MAF Sensor

    Thanks guys... I'll give it a try and let you know how it works out.

  6. #5
    ewill3rd is offline Cadillac Technician
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    Re: MAF Sensor

    Plug the sensor back in, he probably left it unplugged.

  7. #6
    chazglenn3's Avatar
    chazglenn3 is offline Cadillac Owners Connoisseur
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    Re: MAF Sensor

    Quote Originally Posted by ewill3rd View Post
    Plug the sensor back in, he probably left it unplugged.

    That's what I was thinking, too.

  8. #7
    96Deville is offline Cadillac Owners Member
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    Re: MAF Sensor

    Well the sensor was connected. I ended up cleaning the MAF elements with a Q-tip and alcohol and it worked!! No more p0102 code... I also took the opportunity to clean out the TB as it was severly caked with carbon. The car runs like new now and for the first time in weeks, I am code free!!!

    Thanks for the advice guys.

  9. #8
    eldorado1 is offline Cadillac Owners Connoisseur
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    Re: MAF Sensor

    You guys are lucky you actually can clean them... Those MAF's are expensive, and get replaced frequently on other cars.

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