Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: hewis on 24 November 2009, 13:13:52

Title: idle speed
Post by: hewis 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

Title: Re: idle speed
Post by: RobG on 24 November 2009, 13:23:59

You can`t. Anything between 450 and 600 is considered normal.

Title: Re: idle speed
Post by: Andy H 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.

Title: Re: idle speed
Post by: mathewst 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

Title: Re: idle speed
Post by: hotel21 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.

Title: Re: idle speed
Post by: RobG 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

Title: Re: idle speed
Post by: Ken L on 24 November 2009, 14:49:27

Mine idles smoothly at 500

Title: Re: idle speed
Post by: GPar on 24 November 2009, 16:09:49

Yup, 500 with the AC on.

Geoff

Title: Re: idle speed
Post by: Marks DTM Calib on 24 November 2009, 22:37:40

450-500rpm - Aircon off

650-700rpm - Aircon on

Not adjustable and note, the rev counter accuracy varies!