Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: BrianH on 30 March 2007, 17:21:23

Title: V6 Idle Speed
Post by: BrianH on 30 March 2007, 17:21:23
Hi
Just wondering if other V6 owners experience this.
After cracking open sunroof in nice weather last week it reminded me of an issue that annoys me with tickover when Climate is turned off or Econamy button pressed. ie compressor not running.
The problem is that with Climate on tickover perfect about 550-600 RPM never varies whatever is turned on which with an Elite can be quite a lot.
If Climate is turned off tickover drops to about 450-500 RPM. The engine never stalls but just feels to slow, not a major problem as its always been the same but curious to find out if normal or unique to mine.
Thanks in advance for any feedback
Brian
Title: Re: V6 Idle Speed
Post by: x25xe on 30 March 2007, 17:40:17
I tend to leave the climate in ECO mode.  My idle speed seems to be rock steady at 500 rpm.  With climate on, the idle increases to around 600 - 650 RPM.

I am always amazed at the "slow" idle speed - my other vehicles are 4 pots but the idle at 850 - 900 with the A/C off!  One of the benefits of a multi cylinder engine I suppose.

Based on me experience, yours seems normal enough.
Title: Re: V6 Idle Speed
Post by: TheBoy on 30 March 2007, 17:42:14
Normal. ECO on, V6 should be around 450rpm.  This raises 100 rpm when ECO off.
Title: Re: V6 Idle Speed
Post by: BrianH on 30 March 2007, 18:00:26
Thanks
Glad to hear its normal but as you say its amazing how well it ticks over in drive below 500 RPM.

Brian
Title: Re: V6 Idle Speed
Post by: JamesV6CDX on 31 March 2007, 10:19:58
What does ECO actually do?
Title: Re: V6 Idle Speed
Post by: Essex_Andy on 31 March 2007, 10:21:30
My understanding is that in ECO mode the aircon unit isnt used just outside air and the heater matrix

As usual I'm probably 75% right ;D
Title: Re: V6 Idle Speed
Post by: theolodian on 31 March 2007, 10:23:07
Quote
What does ECO actually do?
Turns off the a/c.


Mine does the same low idle on ECO.  Can be lumpy.  Cleaned ICV and TB, can't seem to do anything about it.  Makes me wonder though when everyone talks about how smooth their V6's are.  :-?
Title: Re: V6 Idle Speed
Post by: Kev on 31 March 2007, 21:31:37
Yep, i'm about 450-500 with Aircon off.  :y

Does idle nice and smooth though, when you're in the car you can hardly tell it's running.

I tend to have my Aircon on though cos when it's not and it's at lower revs i sometimes get "roll-back" when on steep hills.

And that won't do.  ;)

Plus, the air just feels fresher with Aircon on. Even up here.  ::)
Title: Re: V6 Idle Speed
Post by: BrianH on 31 March 2007, 23:23:16
Same Kev
Climate only turned off when roof or windows open which I believe is recomended.


Brian
Title: Re: V6 Idle Speed
Post by: Kev on 31 March 2007, 23:56:13
Quote
Same Kev
Climate only turned off when roof or windows open which I believe is recomended.


Brian
Hey Brian,

Where abouts in Bexley are you?

My brother in law stays in Bexley, just outside the village, across from where the hospital used to be. Built fancy houses there now.

Usually down there a few times through the year visiting.
Title: Re: V6 Idle Speed
Post by: BrianH on 01 April 2007, 00:07:03
Hurst Road Kev
Just outside village in other direction

Brian
Title: Re: V6 Idle Speed
Post by: Kev on 01 April 2007, 00:11:08
Quote
Hurst Road Kev
Just outside village in other direction

Brian
I'll try and remember to let you know when i'm next down.

He's in Denton Road.
Title: Re: V6 Idle Speed
Post by: BrianH on 01 April 2007, 00:19:57
If its where I think it is about 5 minutes away.

Brian
Title: Re: V6 Idle Speed
Post by: Kev on 01 April 2007, 00:21:51
No probs.  :y

The only thing that annoys me about going down there is that i'm never allowed to wash my car due to the hose pipe ban.  >:(

I don't ever have that problem up here.  ;)
Title: Re: V6 Idle Speed
Post by: BrianH on 01 April 2007, 00:26:16
Please lets not start talking about weather everybody knows it always rains in Scotland.
Title: Re: V6 Idle Speed
Post by: JamesV6CDX on 01 April 2007, 08:56:51
Mow much more economy does ECO actually give you?
Title: Re: V6 Idle Speed
Post by: Kev on 01 April 2007, 11:27:55
Quote
Mow much more economy does ECO actually give you?
Well when stationary Inst. Consumption shows.....

0.3 to 0.4 gallons per hour with ECO off (Aircon On)

0.2 to 0.3 gallons per hour with ECO on (Aircon Off)

So it does make a difference, but the benefits of having Aircon running far outweigh the marginal improvement i reckon.  ;)
Title: Re: V6 Idle Speed
Post by: theolodian on 01 April 2007, 11:33:11
Quote
Mow much more economy does ECO actually give you?
The display on mine went up 0.2mpg on average . . .  ::)
Title: Re: V6 Idle Speed
Post by: The Barge Captain on 02 April 2007, 23:25:41
Iirc it is a general rule of thumb that using aircon reduces fuel economy by about 10%
But as i've not got any gas in mine, who knows  ;)