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Thread: act cutting out

  
  1. #1
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    dwales83's Avatar
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    act cutting out

    I fitted the 2.2 airbox yest morning nad after finishing it all i took her for a test drive, great i thought, you can hear spool up, seems to pull slightly better and dump valve sounds nicer.
    Few hours later i went out in her again and on start up she had a really rough idle and revs weren't constant.when driving the revs kept dropping when coming to traffic lights and even cut out twice but i also noticed i could hear like a wastegate noise which ive never heard before abd there didnt seem to be a drop in power.
    Im really concerned as i only changed my amm just over a month ago but in was also wondering could it be that my oe recirc dump valve isnt deactivated properly?
    all help is appreciated sorry bout the essay

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    bally_gsi's Avatar
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    Check that you have'nt disturbed any pipes in installing, if you have you might be able to hear a hissing sound on idle as it sound like a boost leak but i might be wrong. Double check all your pipes as they are prone to pop off under pressure if not tight enough
    Astra Gsi Turbo... With a few choice mods

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    yeah its cracking me up now, ive got a pipercross crankcase breather on there now which i can feel hot air coming through, and im just lost now as to where to check, its a nightmare!!Ive got no lights on dash but a light with a star came on when it started to cut out but restarts and no lights.

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    just out of interest could a single piston dump valve cause this as i noticed when idling my dump valve is open but this was already on car when i bought it!i took dump valve apart yest but i dont know what the differences are with them!I did try blocking dump valve take off but i just baffled now

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    Craig's Avatar
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    remove the DV and run it with the oem one
    Ibiza FR CR TDI with 203 BHP

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    Sounds like a pipe has been disturbed mate, check the 2 pipes next to the drivers side strut top, or if that dont work try returning the cat back to standard.
    Astra Coupe Turbo Edition
    230bhp remap air and exhaust mods

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    its a standard cat on the car at the mo, ive noticed that is worse when you are at high revs then go into neutral cus the recs drop to bout 400rpm drive normal and its not so noticeable but defo there.
    cheers for advice so far guys

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