Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: winjon on 02 April 2008, 10:06:48

Title: Engine management system
Post by: winjon on 02 April 2008, 10:06:48

Hi

I have an omrga 2.5 and have recentky had a new non Vauxhall catalytic convert fitted. I now have the engine management warning light going on at about 3000 revs. The fault shown is EOM 11 indicating that the cat is not converting properly but the emission tests show this to be a transient fault and not sufficient for MOT failure. Unfortunately this means that the light keeps going onand has to be reset. Is there a means of reprogramming the computer to ignore this fault?

 :'(

Title: Re: Engine management system
Post by: Marks DTM Calib on 02 April 2008, 10:27:59

Quote

Hi

I have an omrga 2.5 and have recentky had a new non Vauxhall catalytic convert fitted. I now have the engine management warning light going on at about 3000 revs. The fault shown is EOM 11 indicating that the cat is not converting properly but the emission tests show this to be a transient fault and not sufficient for MOT failure. Unfortunately this means that the light keeps going onand has to be reset. Is there a means of reprogramming the computer to ignore this fault?

 :'(

Who told you this load of pork pies!

Firstly is this a petrol or diesl engine

Secondly, the ecu cant monitor cat efficiency on the 2.5's so if its flagging a code its because the lambda is either damaged (possibly during the refit) or the exhaust is affecting gas flow so a proper reading cant be obtained.

Thirdly, 11 is not a recognised fault code!

Title: Re: Engine management system
Post by: winjon on 03 April 2008, 09:06:06

Hi
Thanks for the reply
The car has a petrol engine and both the lambda sensors were checked and found to be o.k.

Title: Re: Engine management system
Post by: Entwood on 03 April 2008, 09:13:02

If you put your car details and location in your profile it saves being asked a zillion times ....  :)

Reading back I think you have a 2.5 V6 .. in which case YOU can read the codes quite simply .. using the paperclip method

http://www.omegaowners.com/forum/YaBB.pl?num=1189022687

If you do that and then tell us what codes you actually get, the experts on the forum will be able to help far easier.

This is prefered to some garage trying to blind you with science they don't understand .. :)

And by the way .......  "Hello" and Welcome to the forum .. :)

Title: Re: Engine management system
Post by: Marks DTM Calib on 03 April 2008, 09:19:23

Yes, read the codes, its really easy!

Would be interesting to know how they checked the lambda sensors....as they didn't even supply a real code or a real diag!