Thread: MAF sensor problems

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  1. #1 MAF sensor problems 
    SE Level Member Summer Time Anytime's Avatar
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    I have a code for a MAF sensor. The code said that it read low air pressure. The check engine light will turn on and off with no difference in how my car drives. I cleaned the sensor and changed my air filter and it worked for getting ride of the light for a day or to. The only problem so far is when I first start my car and push the accelerator the rpm needle goes down then a second later it will jump to about 1500 or 2000 making the car lurch forward. So is the MAF sensor code and the car driving weird have any relation and if so how can I fix it. Thanks
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  2. #2 Re: MAF sensor problems 
    The Blue One blueguy's Avatar
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    If you unplug the MAF and drive the car, does it run normal?
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  3. #3 Re: MAF sensor problems 
    Moderator dsmuts's Avatar
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    What code is it throwing?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
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  4. #4 Re: MAF sensor problems 
    Moderator dsmuts's Avatar
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    And what year make and model is your car?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  5. #5 Re: MAF sensor problems 
    GTP Level Member Impala131's Avatar
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    Sounds like a bad MAF (I've had faulty MAF sensors in two high-mileage 3800s that I have owned.) Honestly, I've never had good luck cleaning a MAF to get it to work correctly. Both times I ended up buying a cardone remanufactured unit, which solved my problems. A bad MAF has caused me issues such as wildly jumping RPMs, especially at idle, hard shifts, and dying unexpectedly. I suppose wiring could be an issue too, but in my experience it's probably the sensor itself.
    2003 Grand Prix GTP.... the journey begins again....
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  6. #6 Re: MAF sensor problems 
    SE Level Member Summer Time Anytime's Avatar
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    I have not tried unplugging it. The code is a P0102. 99 GT. And I might just have to buy the sensor but I am trying to find a cheaper way. I have got prices for them and they are 130 for a reconditioned one which is a little more than I can spend at the moment. I checked the wiring and it wasnt frayed or feel bent or flattened. But if it just doing that sluggish crap I can live with that for awhile.
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  7. #7 Re: MAF sensor problems 
    Moderator dsmuts's Avatar
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    Check the fuse under the hood its IGN something it might be blown
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  8. #8 Re: MAF sensor problems 
    GT Level Member ShadowSwept's Avatar
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    You can find a new MAF for ~$40 shipped on EBay. I had the same problems.
    2001 Bonneville SLE - L36, Cone Filter, 200k miles
    2003 Grand Prix GT
    - L36, Short Ram Intake, HV3, Emissions Delete, ZZP 3" Downpipe, Overkill Tune, 200k miles

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  9. #9 Re: MAF sensor problems 
    SE Level Member Summer Time Anytime's Avatar
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    Thanks for the help I think that I just got it fixed
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  10. #10 Re: MAF sensor problems 
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    what did you do to fix it ?
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