Thread: MAF

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  1. #1 MAF 
    SE Level Member 2002grandprixgt's Avatar
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    can sumone tell some of the signs of a mass airflow senors taking a crap? My 02 grand prix will hit about 45 50 mph and not wanna go any faster can sumone give me some insite plz?
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  2. #2 Re: MAF 
    Killa Bee Scottydoggs's Avatar
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    a bad maf would make the check engine light come on. is it on? have you had it scanned if it is?

    could be a number of thing that could be wrong.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: MAF 
    SE Level Member 2002grandprixgt's Avatar
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    I gotta code of p0440 p0128 p0420
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  4. #4 Re: MAF 
    Killa Bee Scottydoggs's Avatar
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    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  5. #5 Re: MAF 
    GT Level Member bmx6454's Avatar
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    the one code is for low cat effeciency, which can mean a clogged cat, which would most certainly account for the lost power. 440 is evap. could be a bad charcoal canister? not sure about that one... 128 is most likely low coolant, or bad thermostat.
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