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Thread: Astra gsi boost drop

  
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    Astra gsi boost drop

    Need advice on my boost dropping. Put a pre cat pipe, panel filter,front mount n new plugs. On rolling road it only made 125bhp/180torque.
    I checked all boost hoses and vaccuum pipes and they are fine. The boost drops off around 3800rpm. From wot I read most likely actuator or dump valve
    but wana double check. Cheers

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    is wastegate on turbo fully closing properly and is the dump valve closing properly too..
    Drives a 53 plate Arden Blue Zafira A Gsi 2ltr turbo...

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    How does the car drive, any codes and did you pull whatever fuse you're meant to pull on a rolling road

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    traction control is switchable in astra gsi..so no need to remove fuse..
    Drives a 53 plate Arden Blue Zafira A Gsi 2ltr turbo...

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    Quote Originally Posted by supersterl View Post
    traction control is switchable in astra gsi..so no need to remove fuse..
    but does it turn it fully off, and was it actually turned off, wouldn't be the first time i'm sure

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    pushing the button doesnt fully turn it off, it will still limit power as it sences the rear wheels arnt turning. you need to remove fuse 23 to fully turn it off
    Astra T9 estate for sale, see my ebay link!

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    as said.. buttin wont always do the job..

    remove the fuse..

    if ur car is running 125bhp u will feel it when driving m8
    The coupe...ITS ALIVE & back from the dead....again!
    The internet: where everybody knows everything about **** all.

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    125bhp, i thought that would be noticeable.....

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    it WILL be..

    its like driving in limp mode.. but slower
    The coupe...ITS ALIVE & back from the dead....again!
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    Didn't realise I had posted it multiple times so sorry for no reply. Sorted the boost dropping, the dump valve was fitted wrong that was on it wen I bought the car. It has since been removed and og one reconnected. Wen I get time I will take it back and remove the fuse. Thanks to all who gave advice

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