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Anthony Mucic
Tinkerer
victoria
soarer twin turbo

Posts: 6
Reg: 08-2013

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Saturday, August 31, 2013 - 09:50 am, by:  Anthony Mucic (Smotan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

okay so last night i was driving back home and at a set of lights i took off as normal once i reached speed i let go of the accelerator and the car continued accelerating hard!

it jumped from 70km/h up to 90km/h i tried un-sticking the gas pedal thinking it was stuck but did not help i then slammed the brakes but the car was still accelerating finally i just turned off the car and put it in neutral and let it roll to a stop started it again and it took off again no throttle applied.

has anyone got an idea of how to fix this?
i would not think a iacv is the issue as the car wouldn't accelerate that hard would it?

any help is appreciated as this is my girlfriends car and wont to make it safe for her to drive again.
Robert Day
DieHard
victoria
v8 & TT

Posts: 602
Reg: 01-2007

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Saturday, August 31, 2013 - 10:08 am, by:  Robert Day (Lexsmaz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Are you trying to get out of a speeding fine :-) ..

Sorry couldn't resist it, I would be looking at the throttle cable or butterfly as the culprit as you said the IAC would not do it, I presume it came good as you drove home ?? or is it still on the side of the road .. Get someone to hop into the car & give it similar throttle to what you did last night & with your head under the bonnet see what the throttle butterfly is doing, I would think there is no need to have the motor running & go from there
Anthony Mucic
Tinkerer
victoria
soarer twin turbo

Posts: 7
Reg: 08-2013

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Saturday, August 31, 2013 - 10:24 am, by:  Anthony Mucic (Smotan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

it happend around the corner from home and had enough momentum to roll into my street its still accelerating hard when i turn it on now
Shane Haverkamp
Goo Roo
nsw
soarer TT

Posts: 1005
Reg: 10-2007

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Saturday, August 31, 2013 - 11:42 am, by:  Shane Haverkamp (Havabeer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yeah i'd have a look at the butter fly.

take off the intake hose and have a look up there, may need a torch
Adrian McGuire
DieHard
Queensland
Soarer Single T

Posts: 914
Reg: 12-2010

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Saturday, August 31, 2013 - 12:07 pm, by:  Adrian McGuire (Adro) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Return spring on throttle body will stop this happening. Mine used to do this when I had an aftermarket plenum for some reason. After the spring went on there were no more issues
Anthony Mucic
Tinkerer
victoria
soarer twin turbo

Posts: 8
Reg: 08-2013

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Saturday, August 31, 2013 - 01:30 pm, by:  Anthony Mucic (Smotan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks for the advice ill have a look at it tonight and might I say what a helpful forum.

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