Thread: Trouble firing- 2006 GXP

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  1. #1 Trouble firing- 2006 GXP 
    SE Level Member jpongratzgxp's Avatar
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    I have 2006 GXP and I noticed that it starting getting issues with firing when it was cold outside (below freezing), but now I'm getting issues with it not firing off right away, anytime, especially when the engine hasn't been running for awhile. The engine turns over just fine, it just doesn't fire right away so I'm thinking there's some kind of blockage in the fuel lines or an issue with the spark plugs. Does anyone have any input on this?
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  2. #2 Re: Trouble firing- 2006 GXP 
    Awesome Level Member chrsmi1's Avatar
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    Tune up time.
    Comp G. E85, 2.8, Headers, Tune, Intake, S1X, 105# springs, 60 # injectors, 255 walbro,etc.

    *NEW* 2002 Camaro Z28- Lid, Headers, Catback

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  3. #3 Re: Trouble firing- 2006 GXP 
    SE Level Member jpongratzgxp's Avatar
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    Well what would you recommend doing?
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  4. #4 Re: Trouble firing- 2006 GXP 
    Awesome Level Member chrsmi1's Avatar
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    How old are your plugs and wires? General maintenance up to date? Ever cleaned your throttle body? If you're not up to date with keeping your car running well, start there.
    Comp G. E85, 2.8, Headers, Tune, Intake, S1X, 105# springs, 60 # injectors, 255 walbro,etc.

    *NEW* 2002 Camaro Z28- Lid, Headers, Catback

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  5. #5 Re: Trouble firing- 2006 GXP 
    Donating Users timboku's Avatar
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    Gxp.plugs go to.**** around 80k, time.for a tune up
    2002 GTP..DD.. Topswapped Gen V L26, XP cam, Full Size IC, E85, 2.6 Pulley,SD Headers, K&N Intake, N*/Lq4,FP Rewire, TEP Trans, F body Fronts, GXP Rear Brakes, LE Spoiler, AGXs with vogtland springs, bonni gxp rims, Timboku Tuned
    1995 Cutlass Supreme Convertible...Soon to be L32Swapped.....2005 GXP Stock
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  6. #6 Re: Trouble firing- 2006 GXP 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Agreed.

    Spend just a little time and money now to cover the basics then figure it out from there if something is still wrong.

    Clean the MAF sensor and throttle body, replace spark plugs if original and over 75k miles, always run 91+ octane fuel with those 5.3 or at the very least 89 octane. Run a can of fuel system cleaner through the gas tank.

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  7. #7 Re: Trouble firing- 2006 GXP 
    SE Level Member jpongratzgxp's Avatar
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    OK cool. I'll try that and let you guys know. And by the way my car has around 72k miles on it and I almost always run 91 octane in it.
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  8. #8 Re: Trouble firing- 2006 GXP 
    GT Level Member Seachicken's Avatar
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    when I got my 06 I had to change the plugs, Only the dod cylinders had deposits on them. That fixed the minor miss it had.
    06 Gxp, Bermuda Blue
    82 K5, Black on 35's
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  9. #9 Re: Trouble firing- 2006 GXP 
    SE Level Member jpongratzgxp's Avatar
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    If I'm going to get new spark plugs is there any particular brand or model I should get or you recommend getting?
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  10. #10 Re: Trouble firing- 2006 GXP 
    The Blue One blueguy's Avatar
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    I ended up getting NGK TR55.

    Seem to work just fine, tossed on new plug wires too. Car only has 60k but I wanted to get it done, especially since I had the transmission out.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  11. #11 Re: Trouble firing- 2006 GXP 
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    Does anyone know where the MAF sensor is in the GXP? I thought it was between the air filter and the engine.
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  12. #12 Re: Trouble firing- 2006 GXP 
    The Blue One blueguy's Avatar
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    .......it is.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  13. #13 Re: Trouble firing- 2006 GXP 
    SE Level Member jpongratzgxp's Avatar
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    Well that's where I thought it was. Do u know where it is?
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  14. #14 Re: Trouble firing- 2006 GXP 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    You can't miss it, it's filter and then MAF sensor.

    It has 5 wires coming out of the plug in.


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  15. #15 Re: Trouble firing- 2006 GXP 
    SE Level Member jpongratzgxp's Avatar
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    Wow you have a really clean engine, how do you keep it so clean? Also is that an after market air filter?
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  16. #16 Re: Trouble firing- 2006 GXP 
    The Blue One blueguy's Avatar
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    That ain't his.

    He doesn't have a car.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
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    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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  17. #17 Re: Trouble firing- 2006 GXP 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    It's just a internet picture for a visual.

    Keeping a engine bay clean is easy though, wash it down and scrub it clean then just rinse it off every one and then.

    And he's right, I don't own a car anymore. I have a truck.

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  18. #18 Re: Trouble firing- 2006 GXP 
    SE Level Member jpongratzgxp's Avatar
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    Oh lol.
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  19. #19 Re: Trouble firing- 2006 GXP 
    The Blue One blueguy's Avatar
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    And by truck he means power wheels
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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