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  1. #1
    sl3196's Avatar
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    P0102 car running like crap?

    Ok so the GTP is throwing the P0102 code(mass or volume air flow circuit low input) and running really bad. At idle after being warm the rpm's jump up to 1500 and down to 500 and sometimes it dies. Also while cruising it will feel like it misses sometimes. It does it more at higher speeds. Now I've cleaned the tb and all sensors on the tb. (maf,tps, etc.) I do not hear or see any vacuum leaks. Any other ideas what to check? Thanks!

    Also anyone good with reading scans tell me what stuff to scan and I can post it up.
    2008 Pontiac G8 GT - Roto-fab Intake, Superchips Cortex tune, Solo Axle-back Exhaust

  2. #2
    sl3196's Avatar
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    Re: P0102 car running like crap?

    Ok just tried something. With the car idleing it was going up and down and almost stalling, unplugged the MAF and it smoothed out and sounded perfect. This mean I need a new MAF sensor or is there something else going on?
    2008 Pontiac G8 GT - Roto-fab Intake, Superchips Cortex tune, Solo Axle-back Exhaust

  3. #3
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    Re: P0102 car running like crap?

    yeah...i'd say your MAF sensor prolly took a shit...
    -Terry K.

    '03 Grand Prix GTP -
    A Couple Mods - 240WHP 333WTQ
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  4. #4
    sl3196's Avatar
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    Re: P0102 car running like crap?

    Just put a new MAF in it, same thing. GRR WTF?
    2008 Pontiac G8 GT - Roto-fab Intake, Superchips Cortex tune, Solo Axle-back Exhaust

  5. #5
    5speedz34's Avatar
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    Re: P0102 car running like crap?

    I'm going to guess MAF they go bad on 3800's all the time.

    Tony.V
    1992 Lumina Z34 |3.4L 207ci DOHC 60 V6; Getrag 284|
    1994 Pontiac Grand Prix GTP |3.4L 207ci DOHC 60 V6; Hydra-Matic 4T60E|
    1999 Chrysler 300M |3.5L 214ci SOHC 60 V6; 42LE|

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    Re: P0102 car running like crap?

    -2007 Saturn Sky Redline M5<br />-2007 Chevrolet Silverado Classic 2500HD 6.0/A4<br />-2006 Chevrolet Impala SS<br />-1996 Chevrolet Camaro Z28 Hardtop M6<br />-1996 Chevrolet Beretta 3400<br />-ASE Master Technician with ASE Advanced Engine Performance and Under Car Certification

  7. #7
    sl3196's Avatar
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    Re: P0102 car running like crap?

    Quote Originally Posted by Canada
    Ya I printed that off but kinda skipped ahead. Stupid me haha. I'm guess its something in the wiring somewhere. Guess I'll yank the pcm too and check the connections.
    2008 Pontiac G8 GT - Roto-fab Intake, Superchips Cortex tune, Solo Axle-back Exhaust

  8. #8
    Forum Moderator digitaloutsider's Avatar
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    Re: P0102 car running like crap?

    I've had MAF's bad right out of the box. Try taking it back and getting a new one before you go troubleshooting the shit out of it.
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

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    Re: P0102 car running like crap?

    I would troubleshoot it before throwing parts at it.

    What is so hard about checking for power and ground at a connector and then checking to make sure the signal line from the MAF to the PCM isn't open????

    Also check your MAF screen....if there are bits of leaves on the screen (or if they are mashed and dented) that will disturb the airflow, causing it to read funny.
    -2007 Saturn Sky Redline M5<br />-2007 Chevrolet Silverado Classic 2500HD 6.0/A4<br />-2006 Chevrolet Impala SS<br />-1996 Chevrolet Camaro Z28 Hardtop M6<br />-1996 Chevrolet Beretta 3400<br />-ASE Master Technician with ASE Advanced Engine Performance and Under Car Certification

  10. #10
    sl3196's Avatar
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    Re: P0102 car running like crap?

    Well got it fixed. Really wish I could have returned the MAF sensor but they wouldn't take it back. (since I don't think that was the problem) I had to swap intakes around because my 9" k&n got ripped from the shitty wizair intake tubing. Anyways while I was there I took the pcm connectors off and sprayed em with electrical cleaner. Put everything together and it runs perfect now. I think what happened is the pcm connectors weren't on there really good or something and a bunch of dirt got in there.
    2008 Pontiac G8 GT - Roto-fab Intake, Superchips Cortex tune, Solo Axle-back Exhaust

  11. #11
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    Re: P0102 car running like crap?

    That intake tubing is why wizaird's suck.

    Tony.V
    1992 Lumina Z34 |3.4L 207ci DOHC 60 V6; Getrag 284|
    1994 Pontiac Grand Prix GTP |3.4L 207ci DOHC 60 V6; Hydra-Matic 4T60E|
    1999 Chrysler 300M |3.5L 214ci SOHC 60 V6; 42LE|

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