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Thread: Light Throttle Surging

  1. #1
    Senior Member Behold's Avatar
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    Apr 2010
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    Default Light Throttle Surging

    I have installed 60lb Siemens injectors using the GB DVD and Data and im getting a surge as i go from 0-3-4% throttle. its like it bogs down. what might be the cause??? i have turned of DFCO as was suggested and no change. I have just changed my plugs too and nothing. what might be the issue?

    Thanks
    -----------------------------------------------------------------------------------------
    Thanks Antony

    Holden Commodore GTS - LS1 5.7
    12 rib Crank Driven Vortech V2 Centri Charger (Intercooled) 9 PSI.
    LS6 Intake
    LS6 Heads
    YT 1.7 Roller Rockers
    BTR Dual Spring with Ti retainers
    BTR Hardend 7.400 Push rods
    Comp Cam JAMCAM
    2 Bar Map
    Mafless
    LS2 Coils

    PCM LS1B with 512KB Running COS5 v01290005

  2. #2
    Senior Member Behold's Avatar
    Join Date
    Apr 2010
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    155

    Default

    Anyone got a thought? could it be my pulse adder? what could I log to find out the cause?

    Thanks
    -----------------------------------------------------------------------------------------
    Thanks Antony

    Holden Commodore GTS - LS1 5.7
    12 rib Crank Driven Vortech V2 Centri Charger (Intercooled) 9 PSI.
    LS6 Intake
    LS6 Heads
    YT 1.7 Roller Rockers
    BTR Dual Spring with Ti retainers
    BTR Hardend 7.400 Push rods
    Comp Cam JAMCAM
    2 Bar Map
    Mafless
    LS2 Coils

    PCM LS1B with 512KB Running COS5 v01290005

  3. #3
    Lifetime Member
    Join Date
    May 2010
    Posts
    507

    Default

    Got a log to post?
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

  4. #4
    Senior Member Behold's Avatar
    Join Date
    Apr 2010
    Posts
    155

    Default

    Not sure what to log. List me some PIDS and ill post a log.

    I'm assuming Spark, AFR, Injector, What are the follower PIDS? and I head about a BURST KNOCK???
    -----------------------------------------------------------------------------------------
    Thanks Antony

    Holden Commodore GTS - LS1 5.7
    12 rib Crank Driven Vortech V2 Centri Charger (Intercooled) 9 PSI.
    LS6 Intake
    LS6 Heads
    YT 1.7 Roller Rockers
    BTR Dual Spring with Ti retainers
    BTR Hardend 7.400 Push rods
    Comp Cam JAMCAM
    2 Bar Map
    Mafless
    LS2 Coils

    PCM LS1B with 512KB Running COS5 v01290005

  5. #5

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