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Author Topic: Wont idle  (Read 2291 times)

Offline yabbie

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Wont idle
« on: 19 November 2006, 19:05 »
I fitted a new rubber connector(some kinda of bung) to day to the isv the one thats on the bottom of the isv well after i changed it my car wont idle when cold it wont even start i have to use the accelerator pedal to help it start when its hot its fine what could have cause it to do this. I did give the isv a little blow out cause it was so dirty i have soaked it before and well i dont know am i going to have to soak it again ? or is there anything else i cant check. The car was ok on friday but as soon as i try and put something right it goes tits up
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Offline yabbie

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Re: Wont idle
« Reply #1 on: 19 November 2006, 19:18 »
just had a spark in the back of my mind do i have to reset the ecu ? disconnect the battery for 5 mins or some thing ?
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Offline rubjonny

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Re: Wont idle
« Reply #2 on: 20 November 2006, 09:46 »
what car is it ;)
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Offline yabbie

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Re: Wont idle
« Reply #3 on: 20 November 2006, 16:16 »
mk3 16v 2.L abf p reg(97)
« Last Edit: 20 November 2006, 19:39 by yabbie »
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Offline rubjonny

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Re: Wont idle
« Reply #4 on: 20 November 2006, 16:18 »
sounds to me like you have an air leak somewhere, or something has come adrift...
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Offline Len

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Re: Wont idle
« Reply #5 on: 20 November 2006, 16:28 »
Yea check all the breather hoses!
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Offline yabbie

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Re: Wont idle
« Reply #6 on: 20 November 2006, 19:42 »
mmmmmmmm dont see why tho it was fine the day before. But if it has an air leak why would it run fine when its warm ? Would it not give me problems all the time ? so like if i go to start it now cause i havent driven it today i would have to keep it revving for about two mins then it will be fine ?
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Offline rubjonny

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Re: Wont idle
« Reply #7 on: 21 November 2006, 08:23 »
because an air leak will lean out your mixture, and when cold the engine needs to run richer than usual to run properly.  Once the engine has warmed up a bit, the lambda probe is activated and it can compensate for the lean mixture condition.
I think. Maybe. :grin:

Edit: At the end of the day it happened after you were fiddling, so maybe something got knocked ;)
« Last Edit: 21 November 2006, 08:37 by rubjonny »
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Offline yabbie

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Re: Wont idle
« Reply #8 on: 21 November 2006, 17:50 »
Just been looking today and i cant see any signs of an air leak anything else i can try it sounds like when i start the can its getting no fuel it start and dies with in seconds revs really low like your just about to stall then it will die im stuck now ?

Stupid question but how would i know if my fuel pump was on the way out ? Before i had this starting problem there was a funny buzzing sound coming from the back of the car also like where the fuel filter is . I guess the fuel pump is in this area right
« Last Edit: 21 November 2006, 18:16 by yabbie »
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Offline yabbie

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Re: Wont idle
« Reply #9 on: 22 November 2006, 17:40 »
Would anyone be able to tell me where i may locate the automatic choke in this model golf ? just alot of people seem to think it could be causing the problem when its cold
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