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    boost problems

    got the car tech 2'd the other day which came back with boost pressure fault, now ive replaced both boost sensors and checked all pipes, problem is that when am doing about 3-4rpm in 4th or 5th it judders/dies when letting off the power a little bit, is there anything else i can check?

    Cheers Andy
    ARDEN BLUE GSI

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    hi hav u changed any of the actuator pipes round ?

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    i have got the same problem with my car...and its all started when my powerpipe came off...starting from fresh now reseting up vacuum looms etc, and also check your afm, as Ive been told a faulty one of these can cause that...
    if you do sort it Windrew, let me know what it was...
    Sapphire Black VxR Black Theme with a Touch of White, 3" Scorpion System, DapR springs, Rarb, JBI Tophat, FMIC & CDTI Conversion, Iridium Plugs, Full SMD in White...

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    AFM was swapped firstly as i thought the same, ive gone round and cable ties all the connections and its still doing it! not changed any of the pipes round. any other ideas? going to have another look in a bit
    ARDEN BLUE GSI

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    hmmm...im wondering if its the boost solenoids..i been told about this, but aint checked mine yet...it is an annoying problem tho...i then begin to think if its my ecu, cuz it feels like the car is still driving in that safe mode which happens when engine management light comes on...the reason why i think it could be my ecu, is cuz al of a sudden my traction control aint working as well...
    I may have to do a lil experiment this week by removing the battery for like an hour or so, just to test, and see what happens...

    you are having the exact same problems as me...and i hope to sort it this week as my car is going to a guy who is a vauxhall specialist...
    Sapphire Black VxR Black Theme with a Touch of White, 3" Scorpion System, DapR springs, Rarb, JBI Tophat, FMIC & CDTI Conversion, Iridium Plugs, Full SMD in White...

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    20mins should do it, thats all it took to remove the light on mine, but then it came back on later, yours could be a fuse?
    ARDEN BLUE GSI

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    i didnt even think about fuse...lol my light has gone off now, just not got power i should...for example...there is this little hill near mine which if i let of the accelaration, it speeds up going down...yesterday i notice the speed stays the same...and if im on a flat road, i will look to slow down quicker than usual without using brake
    Sapphire Black VxR Black Theme with a Touch of White, 3" Scorpion System, DapR springs, Rarb, JBI Tophat, FMIC & CDTI Conversion, Iridium Plugs, Full SMD in White...

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    have you changed the boost solenoid?
    ARDEN BLUE GSI

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    my problem is it feels like theres too much pressure been let off when am letting off the power?
    ARDEN BLUE GSI

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    Does anyone know the score with the vacuum box at the bottom of the engine? what does this do?
    ARDEN BLUE GSI

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