Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: mariusz on 12 January 2011, 12:32:52

Title: Idle control problem??
Post by: mariusz on 12 January 2011, 12:32:52

hi,my omega W reg after facelift have problem.RPM  to low 670rpm,and engine try to off.i put new throtlle position sensor and cleaned throtlle and idle control.But after fe dys engine code P0505-too high.Where is the problem?car driving nice,just when I stop is horible.

Maybe someone have tech2 to setup my rpm higher?Or any idea??

Title: Re: Idle control problem??
Post by: Jimbob on 12 January 2011, 12:36:08

P0505      Idle Air Control Voltage High
P0505      Idle Air Control Voltage Low

Suggests your IAC is not happy, try cleaning the connector, may want replacing.

also, any air leaks?  spray carb cleaner around the engine, if the engine rev changes, youve found a leak.

Title: Re: Idle control problem??
Post by: mariusz on 13 January 2011, 13:40:21

what kind  carb cleaner??

Title: Re: Idle control problem??
Post by: mariusz on 13 January 2011, 16:57:40

I,v done and notfing find.

Maybe someone can change my rpm to higher??? ;D

Title: Re: Idle control problem??
Post by: Abiton on 13 January 2011, 17:40:39

When you cleaned the throttle and idle valve, did you also clean the small breather jet as described in Grumpy's "How To" (http://www.omegaowners.com/forum/YaBB.pl?num=1194007453) ?
In my experience - although I can't properly explain why - if that jet is not clear, the idle will be lower than it should be.

Title: Re: Idle control problem??
Post by: mariusz on 13 January 2011, 20:07:58

I'v checked the smaller hose and sucking air,so I thing is ok.

Title: Re: Idle control problem??
Post by: albitz on 13 January 2011, 20:31:08

Quote

what kind  carb cleaner??

This kind. :y
http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_202903_langId_-1_categoryId_165750

Title: Re: Idle control problem??
Post by: mariusz on 15 January 2011, 16:05:36

hi.maybe someone have tech2??before mark had,but I don't know how to find him.Or anyone to change my RPM....Please

Title: Re: Idle control problem??
Post by: Kneepad on 15 January 2011, 21:23:06

Quote

hi.maybe someone have tech2??before mark had,but I don't know how to find him.Or anyone to change my RPM....Please

Changing the RPM with a Tech2 is not a solution to your problem. You need to establish what is causing it.
Have you checked for air leaks as Jimbob suggested?

Title: Re: Idle control problem??
Post by: mariusz on 20 January 2011, 07:58:21

yes I checked.Exhaust manifold can be problem??I can see someone repaired But maybe air come aut in gasket place.

Title: Re: Idle control problem??
Post by: mariusz on 21 January 2011, 16:37:49

engine

http://www.youtube.com/watch?v=iK9VINrftso

Title: Re: Idle control problem??
Post by: Abiton on 21 January 2011, 18:23:23

Dunno if it's my headphones, but that sounds horrible!
Not exactly purring is she.   :o

If you take off the oil filler cap with engine idling, is there plenty of oil flicking around in the camcover?

Title: Re: Idle control problem??
Post by: Lazydocker on 21 January 2011, 18:27:57

As a starter, sounds like one of the pulleys driven by the aux belt is dry.

On top of that, also sounds like the exhaust manifold is blowing.

Title: Re: Idle control problem??
Post by: mariusz on 22 January 2011, 10:54:40

Quote

On top of that, also sounds like the exhaust manifold is blowing.

When  I sprayed on cold running engine on exhaust manifold gasket  then blowing.There can be problem??
Anyone have for sale??

Title: Re: Idle control problem??
Post by: mariusz on 24 January 2011, 09:00:10

hi,again.
Any idea??Today MOT