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Model specific boards => Golf mk2 => Topic started by: mboon on 25 March 2010, 18:09

Title: MK2 Gti 16v Engine cut out?
Post by: mboon on 25 March 2010, 18:09
Hi all,

Driving the car last night, nothing hard just around town and it cut out when I was nearly home.

The car just droped revs and nearly instantly shut off just leaving the ignition lights on and no warning lights.

The car was not over heating, dead on half way on the gauge.

Drove fine, the odd hot smell but think this is just older car smell that you get

No leaks under the bonnet?

I tried starting the car straight away and it just turned over but wouldnt fire...

After two or three mins of it sitting there, it started fine like it would normaly?

Started fine this morning and ticked over just right.

Any ideas?

I know it could be a million things but thought there might be some known issues that cause this?

Thanks
Mark
Title: Re: MK2 Gti 16v Engine cut out?
Post by: rubjonny on 25 March 2010, 19:42
ive had similar issues when the over-run cutoff valve was bust or when the pipes to it had come off. its the black plastic valve behind the airbox, check the pipes to it are plugged in ok, if that looks ok try disconnecting the electrical plug to it and see if that helps.
Title: Re: MK2 Gti 16v Engine cut out?
Post by: sprout99 on 25 March 2010, 20:19
is that what stops revs dropping when you back off throttle??

mines started dropping back too far and occaisionally stalls.
Title: Re: MK2 Gti 16v Engine cut out?
Post by: mboon on 25 March 2010, 20:49
I must admit, I have had to do up what I think is something to do with the air filter etc in the engine bay on the left hand side, black plastic funnel kind of thing that has two screw up clips? does that make sense?
Title: Re: MK2 Gti 16v Engine cut out?
Post by: sprout99 on 25 March 2010, 22:08
just been and had a look at the air box. The vacuum pipe that connected to the over run valve  had come off.

I've refitted it and checked the others around that area.

Hopefully that will be it.
Title: Re: MK2 Gti 16v Engine cut out?
Post by: yamz89 on 26 March 2010, 07:36
I had this prob but it was the ht leads breaking down inside.
Title: Re: MK2 Gti 16v Engine cut out?
Post by: mboon on 26 March 2010, 22:27
there is a new dizzy left in the  boot so might be that, thought I had left the days of dizzys etc lol
Title: Re: MK2 Gti 16v Engine cut out?
Post by: Neo Badness on 27 March 2010, 02:31
I had a similar prob when starting from cold was having to continually rev it and keep revs highh when coming up to junctions as it'd stall.

Eventually after reading on here I checked the ISV ( Idle Stabilisation Valve) and then removed about, what looked like, 19yrs of gunky crud out of it refitted and jobs a good 'un.

Title: Re: MK2 Gti 16v Engine cut out?
Post by: RWMT on 27 March 2010, 10:30
I had a similar prob when starting from cold was having to continually rev it and keep revs highh when coming up to junctions as it'd stall.

Eventually after reading on here I checked the ISV ( Idle Stabilisation Valve) and then removed about, what looked like, 19yrs of gunky crud out of it refitted and jobs a good 'un.



Lol,  my 16v was running beautifully until I decided to give the ISV a bit of a spring cleaning.  Took it off, cleaned it out (wasn't bad at all actually), put it back on and now my car will not idle when cold!  I have to rev it constantly to spot it stalling...

Don't you just love old cars with all of their idosyncasies!  :grin:
Title: Re: MK2 Gti 16v Engine cut out?
Post by: mattkh on 27 March 2010, 11:37
Lol,  my 16v was running beautifully until I decided to give the ISV a bit of a spring cleaning.  Took it off, cleaned it out (wasn't bad at all actually), put it back on and now my car will not idle when cold! 
Hi
Do you have the tiny idle adjuster screw on the throttle ?
Title: Re: MK2 Gti 16v Engine cut out?
Post by: RWMT on 27 March 2010, 17:07
Lol,  my 16v was running beautifully until I decided to give the ISV a bit of a spring cleaning.  Took it off, cleaned it out (wasn't bad at all actually), put it back on and now my car will not idle when cold! 
Hi
Do you have the tiny idle adjuster screw on the throttle ?

Yeah, the little one on the airbox side of the throttle bodies?  Is that the one referred to as "the brass air bleed screw" in this guide here...http://www.golfgtiforum.co.uk/index.php?topic=22031.0 ?

I think that it is next on my hit list.  Will I have to readjust the CO2 screw too once I clean the idle adjuster screw, or will it still be fine as is?

Cheers for the advice.
Robert
Title: Re: MK2 Gti 16v Engine cut out?
Post by: mattkh on 27 March 2010, 21:57
Will I have to readjust the CO2 screw too once I clean the idle adjuster screw, or will it still be fine as is?
Hi
No, leave the CO2 screw as it is.
Also make  a rough note of how far in the idle adjuster screw is before you remove it.
Title: Re: MK2 Gti 16v Engine cut out?
Post by: RWMT on 28 March 2010, 12:08
Sweet.

Thanks for the advice, I'll have a go at cleaning it next time I visit my car  :smiley: