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Author Topic: g40 idling issues/cold start  (Read 2499 times)

Offline VW_rae

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g40 idling issues/cold start
« on: October 29, 2009, 07:02:33 pm »
right guys....im having cold start issues with my g40 i start my in the morning it idles at 1200rpm if you just touch the pedal it shoots to 2k and holds for a very long time.you then go to drive the car as you go through the gears then go to neutral it hunts.after you boot the car (once warm).it sorts it self out and idles perfect.i have checked my boost hoses.breathers etc.help has any one had this problem before?
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Offline GAF2

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Re: g40 idling issues/cold start
« Reply #1 on: October 29, 2009, 08:15:17 pm »
i have the exact same problem, changed the isv, checked my throttle cable - no joy. could the hunting be sumthing to do with the cam.

cheers  grant
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Offline VW_rae

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Re: g40 idling issues/cold start
« Reply #2 on: October 30, 2009, 12:24:58 am »
what cam have you got init???if its a 270/280 its a mild one and it shouldnt do that.
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Offline VW_rae

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Re: g40 idling issues/cold start
« Reply #3 on: October 30, 2009, 02:13:19 pm »
checked all vacum hoses.i took the throttle body off today cleaned it found melted plastic lol init.put it back on now it shoots to 3grand for a mo then drops again down to idle.and holds idle
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Offline GAF2

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Re: g40 idling issues/cold start
« Reply #4 on: October 30, 2009, 05:10:43 pm »
am not sure what my cam is as i never fitted it but its a newman.  Had my throttle body off aswell never found anything wrong.

cheers grant
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Offline VW_rae

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Re: g40 idling issues/cold start
« Reply #5 on: October 31, 2009, 04:09:57 pm »
erm i cleand the throttle it holds idle realy high idle then drops when warm.also i have jus turbo converted it and its running g60 greens do you rekon the adjusting the co will help as i can smell petrol peeing out of the back of it ???
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Offline hayesey

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Re: g40 idling issues/cold start
« Reply #6 on: November 01, 2009, 03:57:29 pm »
what chip are you using?
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Offline VW_rae

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Re: g40 idling issues/cold start
« Reply #7 on: November 01, 2009, 05:59:21 pm »
G-WERKS
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Offline hayesey

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Re: g40 idling issues/cold start
« Reply #8 on: November 01, 2009, 06:05:39 pm »
and it's def one designed for 250cc injectors?
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Offline VW_rae

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Re: g40 idling issues/cold start
« Reply #9 on: November 02, 2009, 08:44:30 pm »
Carried out some diagnostics every thing point to isv but i cant find one naywhere euro said no vw said they dont make them anymore.has any one got one???
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Offline VW_rae

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Re: g40 idling issues/cold start
« Reply #10 on: November 02, 2009, 08:45:31 pm »
yep defo for the injectors
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