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  1. #1

    Default Mass Air Flow Sensor Problems

    2002 S10 Skips bad and blows out black smoke with the MAF sensor plugged in but with it unplugged it runs fine. What are the chances of having a bad sensor??

  2. #2

    Default

    I would say quite good! Have you tried cleaning it?
    When you hear hoofbeats, look for horses not zebras.

  3. #3
    Sr. Apprentice msvx95's Avatar
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    Default

    What kind of air filter do you have? If you are using one you have to oil...maybe some oil coated the sensor.

    I think brake cleaner should work well to soak the sensor in.
    Matt


  4. #4

    Default

    get some maf cleaner it works great

  5. #5

    Default

    Quote Originally Posted by chevyman1297 View Post
    2002 S10 Skips bad and blows out black smoke with the MAF sensor plugged in but with it unplugged it runs fine. What are the chances of having a bad sensor??
    You may have a bad sensor or it could be something else. I would check the trouble codes as well as clean the sensor before buying any parts.
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  6. #6

    Cool Mass Air Flow Sensor Problems

    CRC makes a MAF cleaner. Its in a silver can. Dont use throttlebody, carb or any other cleaner except MAF cleaner.

  7. #7

    Default

    Quote Originally Posted by silveradotrailblazer View Post
    CRC makes a MAF cleaner. Its in a silver can. Dont use throttlebody, carb or any other cleaner except MAF cleaner.
    Good tip! The carb cleaners will leave an oil based residue which will skew the sensor reading causing a loss of power.
    Jim

    2004 SILVERADO 2500HD LS
    Pro Comp Leveling Kit
    285-75-16 Cooper ST All Terrains
    Pro Comp Programmer
    Bilstein Shocks
    Linux Bed Liner
    Tinted Windows



    Other rides:

    1967 Landcruiser <350 Chevy>
    1970 Camaro
    1990 Geo Metro Convertible
    2007 FJ Cruiser

  8. #8

    Default

    Quote Originally Posted by msvx95 View Post
    What kind of air filter do you have? If you are using one you have to oil...maybe some oil coated the sensor.
    Very good suggestion.



    Quote Originally Posted by msvx95 View Post
    I think brake cleaner should work well to soak the sensor in.
    You definitely don't want to use brake cleaner, and you don't need to soak it. As mentioned before, use the CRC MAF cleaner ONLY.

    Just spray the wires with the cleaner. No fingers, q-tips, compressed air, nothng. I like to take the actual sensor out of the fitting assembly. The honeycomb on the inbound side makes it difficult to clean the MAF wires.
    When you hear hoofbeats, look for horses not zebras.

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