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MAF Sensor Cleaning 700

posted by  crazy_frog on  Fri Nov 19 09:08 CST 2010
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last visit: Sat Apr 9 14:05 CST 2011
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Hi all,

I have some CRC mass air flow sensor cleaner and am thinking about cleaning my MAF as a way to improve fuel economy and/or improve performance.

I am not currently exhibiting any symptoms that would lead me to believe the car is having a problem with the MAF sensor.

Is this an action that is recommended for the above purpose?

The car is a 90 740 turbo with 163k.








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    MAF Sensor Cleaning 700

    posted by  CalW on  Tue Nov 30 16:12 CST 2010
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    last visit: Sat Sep 3 15:39 CST 2011
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    CRC has worked great for me. The latest was when a shop in Norfolk wanted to replace the MAF on my kid's car. I told them to spray the thing first, and it worked. It has brought my units back from the near dead 4-5 times. However I wouldn't do it as a preventive step, absent a performance problem.








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    I should interest you to know 700

    posted by  Rhys on  Fri Nov 19 14:21 CST 2010
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    last visit: Tue Nov 20 10:22 CST 2012
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    The Bosch system has a self-cleaning system - a burn-off cycle that is run when certain parameters of engine operation are achieved. It's run after you shut the engine off, and is quite capable of maintaining the AMM without any CRC snake-oil.







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    MAF Sensor Cleaning 700

    posted by  Steve on  Fri Nov 19 10:22 CST 2010
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    last visit: Fri Oct 24 07:16 CST 2014
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    I did mine and it achieved nothing: no change in performance. As noted, the wires are ultra-fine so it is easy to screw up and damage them. Probably best to leave them alone, or spray only the throat of the AMM to remove dust.
    --
    See the 700/900 "FAQ" at the menu bar top screen left side.








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    MAF Sensor Cleaning 700

    posted by  Will740turbo on  Fri Nov 19 09:31 CST 2010
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    last visit: Wed Oct 22 16:09 CST 2014
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    In general, the attitude for AMM's around here is don't fix what ain't broken.

    The wires are kind of delicate and we try to keep from fiddling with them for fear of making it worse.

    I did use some on mine, and it didn't seem to do anything good or bad.

    Happy Wrenching
    --
    1990 740 Turbo, on its way to stock specs, maybe beyond







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