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Thread: Help

  1. #1
    VXRed
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    25th April 2018
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    Default Help

    Hello guy n gals, I need some help please. My Astra VXRacing isn't running well, not holding boost and stuttering when put foot down. I would like to try a coil pack ASAP. Does anyone have either a spare I can try or be willing to let me try theirs to hopefully identify the problem.
    Thank you in advance

    Ian

  2. #2
    VXRed blooded Damo24LFC's Avatar
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    18th September 2017
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    Where are you
    07 Arden blue VXR(H). 3” scorpion turbo back, pipercross cone filter, front mounted intercooler. Running stage 2 map dyno tested at 290bhp 340 lb torque.
    Black rear diffuser, black boot trim, black tinted windows. Piano black console and steering wheel trims. Carbon fibre dash trims.

  3. #3
    VXRed
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    I'm in North Shields...
    I got one last night but it's made no difference. Looking at possible fuel pump/boost solenoid/recirc replacements now
    AFM graph is all over when car comes on boost (full throttle) she splutters and doesn't make full torque (150NM less than should be) and then runs lean on rest of power run.

  4. #4
    VXRed blooded Damo24LFC's Avatar
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    Could be a possible map sensor
    07 Arden blue VXR(H). 3” scorpion turbo back, pipercross cone filter, front mounted intercooler. Running stage 2 map dyno tested at 290bhp 340 lb torque.
    Black rear diffuser, black boot trim, black tinted windows. Piano black console and steering wheel trims. Carbon fibre dash trims.

  5. #5
    VXRed
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    Hmmmm...

  6. #6
    VXRed blooded Damo24LFC's Avatar
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    If the map sensor is faulty you wouldn’t get full power and it would mess with fuel air ratios as it’s the sensor leading to throttle body
    07 Arden blue VXR(H). 3” scorpion turbo back, pipercross cone filter, front mounted intercooler. Running stage 2 map dyno tested at 290bhp 340 lb torque.
    Black rear diffuser, black boot trim, black tinted windows. Piano black console and steering wheel trims. Carbon fibre dash trims.

  7. #7
    VXRed
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    25th April 2018
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    Would it cause misfire though?

  8. #8
    VXR Nothing comes close VXRRy's Avatar
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    15th May 2013
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    Default Help

    How about spark plugs? When were they last done?

    Worth checking all your boost hoses the lot too

  9. #9
    VXRed
    Join Date
    25th April 2018
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    Plugs are new - bought a coil pack from a member on a Facebook group (but it made no difference so it could be a dud?) - i do keep popping a hose off, get the turkey warble...
    Installed a Courtenay boost gauge last night and runs at -30 at idle (-15 when hose pops off) but when boosting doesn't seem to pass +10 - is that right? Car is Courtenay Stage 2

  10. #10
    VXR Nothing comes close VXRRy's Avatar
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    I would try another coil pack mate.

    A fella I know had the same issue recently and was the coilpck


    Sent from my iPhone using Tapatalk

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