Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: mick-1975 on 15 March 2010, 22:52:32

Title: help big time
Post by: mick-1975 on 15 March 2010, 22:52:32
  where do i start ,i nipped down to see  mark to reset my codes on my car ,once done would not tick over very well at all ,mark bless him cleaned the throttle body and still would not go well .
  anyway on the way home eml light came on and came to a stop ,reset the codes with my rac obd2 reader .managed to get to my dads in carlton where it has been left ,
Any ideas plz  :'( :'(
Title: Re: help big time
Post by: Matchless on 15 March 2010, 23:24:33
what were the codes when the eml came on?
Title: Re: help big time
Post by: Marks DTM Calib on 16 March 2010, 08:11:31
As said yesterday....its the MAF...a 2.2 does not consume 18Kg of air per hour at idle.

This is backed up by the inability to rev and the lean exhaust code.

Vx part number is 90530463

Alternatives here but, avoid the second hand ones

http://shop.ebay.co.uk/?_from=R40&_trksid=p3907.m38.l1313&_nkw=90530463&_sacat=See-All-Categories

Title: Re: help big time
Post by: TheBoy on 16 March 2010, 08:43:49
Quote
As said yesterday....its the MAF...a 2.2 does not consume 18Kg of air per hour at idle.

This is backed up by the inability to rev and the lean exhaust code.

Vx part number is 90530463

Alternatives here but, avoid the second hand ones

http://shop.ebay.co.uk/?_from=R40&_trksid=p3907.m38.l1313&_nkw=90530463&_sacat=See-All-Categories

At full temp idle, its around 8-10kg iirc...
Title: Re: help big time
Post by: Marks DTM Calib on 16 March 2010, 08:45:09
Yep.....this was huge and fluctuating...it even hit 22Kg per hour at idle!
Title: Re: help big time
Post by: TheBoy on 16 March 2010, 08:46:44
Quote
Yep.....this was huge and fluctuating...it even hit 22Kg per hour at idle!
Presumably when warm - seem to recall about 25-30kg on cold/fast idle
Title: Re: help big time
Post by: Marks DTM Calib on 16 March 2010, 08:47:36
Quote
Quote
Yep.....this was huge and fluctuating...it even hit 22Kg per hour at idle!
Presumably when warm - seem to recall about 25-30kg on cold/fast idle


Coolant temp 90 degC
Title: Re: help big time
Post by: Marks DTM Calib on 16 March 2010, 08:47:58
Quote
Quote
Quote
Yep.....this was huge and fluctuating...it even hit 22Kg per hour at idle!
Presumably when warm - seem to recall about 25-30kg on cold/fast idle


Coolant temp 90 degC


engine revs 780rpm
Title: Re: help big time
Post by: TheBoy on 16 March 2010, 08:52:59
I already know the answer, as its you, but for the sake of following proper diags, was the throttle closing (or nearly closing as its DBW) properly?
Title: Re: help big time
Post by: Marks DTM Calib on 16 March 2010, 08:54:30
Quote
I already know the answer, as its you, but for the sake of following proper diags, was the throttle closing (or nearly closing as its DBW) properly?


Yes, throttle position was all spot on.....and I even removed and cleaned the throttle body and breathers to be totaly sure (which were pretty gummed up)
Title: Re: help big time
Post by: TheBoy on 16 March 2010, 09:06:02
Has to be MAF or its associated wiring then imho - I'm happy to make the assumption that the ECU is fine due to their history of reliability.
Title: Re: help big time
Post by: mick-1975 on 16 March 2010, 09:30:02
thank you mark for last night , going to get a new sensor then hopefully all be good ,
 car at my dads now as when the eml light came on just coasted in to side of road ,

 i shall let you know how i get on with it . :y
Title: Re: help big time
Post by: david_omega on 16 March 2010, 10:20:49
Quote
  where do i start ,i nipped down to see  mark to reset my codes on my car ,once done would not tick over very well at all ,mark bless him cleaned the throttle body and still would not go well .
  anyway on the way home eml light came on and came to a stop ,reset the codes with my rac obd2 reader .managed to get to my dads in carlton where it has been left ,
Any ideas plz  :'( :'(


so you took an omega to carlton?  vauxhall did it the other way round lol.

hope you get it sorted buddy.
Title: Re: help big time
Post by: vic on 16 March 2010, 12:32:02
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190307134070&ssPageName=STRK:MEWNX:IT
Did the same search recently for my car and came across the above. Genuine Siemens part, which I thought was good considering my local stealer had quoted me £112 the same day for the same part, (even Dick Turpin was decent enough to wear a mask when robbing his victims. this bloke had more 'front than a row of shops' and wore a badge with his name on, so I knew who was 'robbing me)
Good luck sorting out the problems. :y
Title: Re: help big time
Post by: Kevin Wood on 16 March 2010, 12:35:39
Just to say, I haven't forgotten about your maintenance guide, Vic. I will try and sort it out tonight.  :y

Kevin
Title: Re: help big time
Post by: vic on 16 March 2010, 12:55:26
Thanks Kevin,  I've seen you've been busy so honestly problems and thank you !
I bought a pattern MAF (£33) which cured the problems I was having then worried about it, so bought a genuine one as well for £65 which I will fit this weekend. Still, suppose  I have a spare now too! which I may 'out on Ebay.