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Author Topic: idle speed  (Read 983 times)

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hewis

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idle speed
« on: 24 November 2009, 13:13:52 »
I have just bought omega 2.5v6 on a 99 and it idles at 450rpm how do you turn up the idle speed
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RobG

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Re: idle speed
« Reply #1 on: 24 November 2009, 13:23:59 »
You can`t. Anything between 450 and 600 is considered normal.
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Andy H

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Re: idle speed
« Reply #2 on: 24 November 2009, 13:37:24 »
Mine always idled (smoothly) at 550.

If it is rough or struggling then in might be a symptom of a sticking ICV (idle control valve) or a host of other minor ailments.

Start by cleaning the idle control valve and checking for fault codes. Cleaning the crankcase breathers would be a good move also.
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mathewst

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Re: idle speed
« Reply #3 on: 24 November 2009, 13:38:55 »
Don't think so Rob, idle engine speed should be higher than than, around 700-750 RPM.
400 is too low.
It looks like idle control valve isn't working properly
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hotel21

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Re: idle speed
« Reply #4 on: 24 November 2009, 13:51:51 »
450 idle is not unusual for a V6 with aircon off.  Switch on the a/c and it will lift to around 500/550.  Its non adjustable as said, but cleaning the idle control valve, if fitted, will ensure its running at its best.
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RobG

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Re: idle speed
« Reply #5 on: 24 November 2009, 13:55:09 »
Quote
Don't think so Rob, idle engine speed should be higher than than, around 700-750 RPM.
400 is too low.
It looks like idle control valve isn't working properly
Too high for a V6
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Ken L

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Re: idle speed
« Reply #6 on: 24 November 2009, 14:49:27 »
Mine idles smoothly at 500
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GPar

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Re: idle speed
« Reply #7 on: 24 November 2009, 16:09:49 »
Yup, 500 with the AC on.

Geoff
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Marks DTM Calib

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Re: idle speed
« Reply #8 on: 24 November 2009, 22:37:40 »
450-500rpm - Aircon off

650-700rpm - Aircon on

Not adjustable and note, the rev counter accuracy varies!
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