Adjust idling speed 1999 93 2.0i ???

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timmy - 23 Jun 2006 11:49 GMT

Hi,
My saab is idling at 1100 revs. It's a manual 2.0 1999 93.
How can I reduce this idling speed.

What do I need to adjust and where can I find it.

thanks in advance
Timmy

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Fred W - 23 Jun 2006 11:55 GMT

> Hi,
> My saab is idling at 1100 revs. It's a manual 2.0 1999 93.
[quoted text clipped - 4 lines]
> thanks in advance
> Timmy

It's buried in the electronic code inside the ECU. You can't change it.

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-Fred W

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timmy - 23 Jun 2006 14:34 GMT

Hi,
If I can't change it does everybodys saab idle at 1100 revs?
Can they change it in a saab dealership? or is it worth the hastle?

thanks

> > Hi,
> > My saab is idling at 1100 revs. It's a manual 2.0 1999 93.
[quoted text clipped - 6 lines]
>
> It's buried in the electronic code inside the ECU. You can't change it.

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why, me - 23 Jun 2006 20:42 GMT

> Hi,
> If I can't change it does everybodys saab idle at 1100 revs?
[quoted text clipped - 12 lines]
>>
>>It's buried in the electronic code inside the ECU. You can't change it.

pretty much, especially if you have the AC on. I have a 2000 9-3 and it
idles right around 1000rpm mark. Have never checked it for exact revs

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Colin Stamp - 23 Jun 2006 21:19 GMT

>Hi,
> If I can't change it does everybodys saab idle at 1100 revs?
[quoted text clipped - 12 lines]
>>
>> It's buried in the electronic code inside the ECU. You can't change it.

If it really is idling too fast (I think it should be 900RPM for
Motronic cars) then something needs fixing, rather than adjusting. It
could be down to various things. Maybe a small air leak somewhere on
the inlet side, or a duff idle air valve or temperature sensor etc.
Then again, the idle speed might be spot-on, but the rev-counter is
duff.

Cheers,

Colin.

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- Bob - - 28 Jun 2006 04:03 GMT

>>Hi,
>> If I can't change it does everybodys saab idle at 1100 revs?
>>Can they change it in a saab dealership? or is it worth the hastle?
>>
>>thanks

I suspect the idle air control needs cleaning. At least that's a place
to start once you've done a basic tune, cleaned the TB, checked the
hoses for leaks. FYI - the hose to the BPV tends to dry out and crack.

If you are a DIY guy I can find a link to point you at.

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DervMan - 04 Jul 2006 06:55 GMT

>> Hi,
>> My saab is idling at 1100 revs. It's a manual 2.0 1999 93.
[quoted text clipped - 6 lines]
>
> It's buried in the electronic code inside the ECU. You can't change it.

Yes it is, but you can always change it. It's probably something else
causing the change in idle speed, which should be 900 rpm.

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The DervMan
www.dervman.com

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Fred W - 04 Jul 2006 19:20 GMT

>>>Hi,
>>> My saab is idling at 1100 revs. It's a manual 2.0 1999 93.
[quoted text clipped - 9 lines]
> Yes it is, but you can always change it. It's probably something else
> causing the change in idle speed, which should be 900 rpm.

So, DervMan, tell us. How *do* you change the idle speed? Are you
talking about reprogramming the ECU?

It is definitely something else causing the high idle.

Signature

-Fred W

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DervMan - 04 Jul 2006 20:37 GMT

>>>>Hi,
>>>> My saab is idling at 1100 revs. It's a manual 2.0 1999 93.
[quoted text clipped - 11 lines]
>
> So, DervMan, tell us. How *do* you change the idle speed?

You replace the current map within the ECU for another... it isn't rocket
science.

Nor would it be sensible or prudent without a set of some sort of wild cams,
but I'm merely saying, it isn't impossible.

> Are you talking about reprogramming the ECU?
>
> It is definitely something else causing the high idle.

Probably. It might not be a high idle but a duff instrument.

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The DervMan
www.dervman.com

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