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  1. #1

    Default Check engine light on.

    Last night my check engine light came on after i had gone through some deep water from a flood, and i hooked up my tuner and the diagnostics said this "mass or volume airflow circuit low input." what exactly does this mean, and what should i do? thanks for all input!
    03' Silverado 1500 HD
    K&N CAI, Diablo Programmer

  2. #2

    Default

    probably means you got water into the intake and onto the Mass air flow sensor. get a can of mass airflow sensor cleaner and try that. If it doesnt fix it you probably messed up the sensor and will need a new one.
    David
    2004 Silverado 2500 Crew Cab 4x4, AMSOIL EA air filter, Granatelli MAF sensor, Throttle body spacer, Magnaflow exhaust (true dual to 2 in 1 out muffler), 6" ProComp lift (add a leaf and 5" superlift rear block), Bilstein shocks, 35's (Cooper Disoverer ST) and 4.10 gears, Rhino Liner, EGRUSA fender Flares and widow visors, extended stainless steel brake lines, firestone airbags w/onboard air compressor, Pioneer Avic X940BT navigation, Accel backup camera.
    http://www.gmtruckclub.com/forum/sho...Silverado-2500
    1960 Land Rover Series II 88
    2001 Pontiac Sunfire
    2013 Toyota Avalon Limited (Wife's Car)
    NRA Life Member

  3. #3

    Default

    X2 what dsfloyd said, but I would also spray the elec. plug to the MAF with electrical cleaner to clear any water that may have gotten into the plug.

  4. #4
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    Default

    Also take a look at your air filter etc to make sure there isnt any moisture that will cause a problem after you do get it repaired.
    Mike

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  5. #5

    Default

    I had cleaned it and the check engine light went off. thanks!
    03' Silverado 1500 HD
    K&N CAI, Diablo Programmer

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