Low Idle When Warm

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josh2109
Posts: 49
Joined: Mon Feb 25, 2013 9:55 pm
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Low Idle When Warm

Post by josh2109 »

Hi guys,

Car is doing what it says on the tin really - starts fine when cold and idles ok. However once it gets up to temperature the idle drops to 500 rpm or less :?

It was running fine until the other day. It had been standing on the drive for about a week or so, before I stopped using it she ran perfect, started her up the other day and the idle was mega low once warm. Nothing had changed so I don't really know what could be wrong.

My thoughts are fuel starvation or maybe a gunked up crank case breather (it's not blowing as hard as the one on my Golf). Is there anything else I can trouble shoot? The choke is wide open when hot and I've got all new vac lines from a few months ago. I'm a bit stumped :(

Cheers,
Josh

*edit

I should probably add, it's a 1.8 MK2 Scala on a Pierburg 2E2 (I know - boo, hiss etc.)


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mark1gls
Posts: 3957
Joined: Thu Apr 02, 2009 9:28 pm
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Location: Somerset

Re: Low Idle When Warm

Post by mark1gls »

Have you Tried increasing the idle speed when its warm and the idle is low?


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
Mk1 88 Golf GTi cabriolet 1.8 DX. Daily drive.
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gafr21
Posts: 28
Joined: Wed Apr 01, 2009 11:47 pm

Re: Low Idle When Warm

Post by gafr21 »

Hi, I have had a similar problem with my GTII only that the revs drop so low that it eventualy cuts out. Adjusting the idele speed screw on the cetal disk/plunger part does nothing (I have moved it while the car is running to the extreem and it has no effect).

Same carb, fine when cold.

Any thoughts? :)


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