Idle speed

species8350

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Oct 17, 2009, 7:49:04 AM10/17/09

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ref. Pug 205 1.6 GTI

When I start my car from cold the idle speed is about 1300RPM.

After a while the idle speed drops (ca 1000RPM).

But when the car has been running for some time the idle speed is back
at about 1300RPM.

The car runs well.

Any advice on how to get a normal idle speed ca 1000RPM

Thanks

Bob Minchin

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Oct 17, 2009, 1:02:04 PM10/17/09

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Clean, or ultimately change the idle control valve. After high mileage
these valves get sticky around the normal operating point.

I would expect your correct idle speed to be about 850rpm

Bob

species8350

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Oct 22, 2009, 7:28:43 AM10/22/09

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Thanks for the advice,

I cannot find a reference in the workshop manual for the 'idle control
valve'

Where can I locate it?

Thanks

Best wishes

S

Bob Minchin

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Oct 22, 2009, 9:00:43 AM10/22/09

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Sorry I don't have a 205. On my 405 it is right on top of the engine and
easy to spot. Functionally it provides a controlled air bypass round the
throttle butterfly usually connected by hoses about 30mm diameter.

This is my 405 one
http://i115.photobucket.com/albums/n313/9fingersphotos/IdleControlValve.jpg

Sometimes these are mistakenly called "stepper motors" but rarely are
true stepper motors.

You can see some other examples by searching for "Idle control valve" on
ebay
current showing 633 but curiously none for a 205?

Sorry I can't be more specific

Bob

species8350

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Oct 23, 2009, 5:40:50 AM10/23/09

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> This is my 405 onehttp://i115.photobucket.com/albums/n313/9fingersphotos/IdleControlVal...

>
> Sometimes these are mistakenly called "stepper motors" but rarely are
> true stepper motors.
>
> You can see some other examples by searching for "Idle control valve" on
> ebay
> current showing 633 but curiously none for a 205?
>
> Sorry I can't be more specific
>

> Bob- Hide quoted text -
>
> - Show quoted text -

Ok,

Thanks for responding.

I suppose a clean will involve dismantling. Or is there a quick and
dirty way?

If the valve needed to be replaced, would that be an expensive job if
carried out by a garage.

Thanks

S

Bob Minchin

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Oct 23, 2009, 9:31:11 AM10/23/09

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Yes you will have to dismantle to remove the valve - depending on where
it is.
I keep a spare in the car tucked under the drivers seat and swap mine in
about 1 minute with no tools as it goes through periods of misbehaviour.

Looking at the history of your postings, I think you need to decide if
the garage is going to maintain your car or you are going to do it
yourself via advice here.

Firstly find your valve and determine how easy or otherwise it is to
remove, then price up a new one and thirdly decide if you are going to
do the job or pay someone else.
Sorry to be blunt but .....

Bob

species8350

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Oct 24, 2009, 1:04:27 PM10/24/09

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As far a self-maintenance or garage repairs are concerned, this will
be mix and match depending upon the charges and the ease of repair.

Aren't we all in this position

Best wishes

S