Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Mr Skrunts on 09 July 2010, 15:48:03

Title: Common Faults - 3.2 Omega's
Post by: Mr Skrunts on 09 July 2010, 15:48:03
Not really paid attention to the facelift models but are there any common faults/problems with them, especially the 3.2

Have seen something about an issue regards the Lamda Sensors needing to be relocated but cant remeber the problem or what caused it.

Also the remote boot lock and people locking thir keys in it.

Only other thing I have noticed this week is faults on the NCDC 2013 seem to be a few threads in the electrical section about them.

Plus broken ashtrays?

Anything else?
Title: Re: Common Faults - 3.2 Omega's
Post by: tunnie on 09 July 2010, 16:03:00
the lamda sensors do need to be moved, they are post cat sensors, but for what ever reason mounted before the second cat  ::)

On 2.2 its done correct way around and has pre-cat sensor, pre-cat. Funny how 4 pot engine gets it right  ::) ;D

Usual V6 issues, cam covers ect, coil packs can be an issue, like with anything if its well maintained should be fine.
Title: Re: Common Faults - 3.2 Omega's
Post by: Kevin Wood on 09 July 2010, 16:55:39
Quote
the lamda sensors do need to be moved, they are post cat sensors, but for what ever reason mounted before the second cat  ::)

On 2.2 its done correct way around and has pre-cat sensor, pre-cat. Funny how 4 pot engine gets it right  ::) ;D

Usual V6 issues, cam covers ect, coil packs can be an issue, like with anything if its well maintained should be fine.

Nothing wrong with the placement originally, on either model. In fact it was the same on the 2.2 and 3.2.

 Engine->Lambda sensor->Pre-cat->Lambda sensor->Main Cat->Rest of exhaust system->Environment

The intention is always to monitor the performance of the pre-cat which is critical to the EU3 (or 4?) emissions rating the car has. It just happens that the 3.2 engine tends to kill the pre-cats early in their life.

Other than the pre-cat EML issue, the different coil packs, the lack of an EGR, ICV and no SAI system to unplug when it gets noisy, they are pretty much the same and have the same issues as the 2.5/3.0. Oh, and head gaskets improved on 2.6/3.2 so less likely to cause problems.

Kevin
Title: Re: Common Faults - 3.2 Omega's
Post by: feeutfo on 09 July 2010, 18:29:18
And a hell of a lot easier to lpg than the 3litre due to the lack of said parts.

Also missing are the cruise box and throttle cable gubins. Almost room for a v8.
Title: Re: Common Faults - 3.2 Omega's
Post by: johnnycboy on 09 July 2010, 19:21:07
Quote
And a hell of a lot easier to lpg than the 3litre due to the lack of said parts.

Also missing are the cruise box and throttle cable gubins. Almost room for a v8.

sounds like you got a new project on the horizon ::)
Title: Re: Common Faults - 3.2 Omega's
Post by: VXL V6 on 09 July 2010, 20:37:03
They also have multi-layered metal exhaust manifold gaskets which are an improvement.

As they are a later engine they should also have a stainless steel oil cooler as standard.
Title: Re: Common Faults - 3.2 Omega's
Post by: feeutfo on 09 July 2010, 20:47:05
Quote
Quote
And a hell of a lot easier to lpg than the 3litre due to the lack of said parts.

Also missing are the cruise box and throttle cable gubins. Almost room for a v8.

sounds like you got a new project on the horizon ::)
It's nearly finished as far as what I wanted to do with it goes. Looking forward to just driving it instead of lying under,over, in it on the drive every weekend or so.

And yes, stainless oil cooler.
Title: Re: Common Faults - 3.2 Omega's
Post by: Cliffo B on 09 July 2010, 21:53:17
shushh sometimes think miggys a bore so smooth and rarely anything wrong I just give her the best of everything oil breathers? what are they? now wait for it allto pile up!!!!!
Title: Re: Common Faults - 3.2 Omega's
Post by: Andy H on 09 July 2010, 22:57:15
Quote
They also have multi-layered metal exhaust manifold gaskets which are an improvement.

As they are a later engine they should also have a stainless steel oil cooler as standard.
 
They also have steel exhaust manifolds (instead of cast iron) less mass (both weight and thermal mass) so warm up quicker and are less restrictive to exhaust gases to release a few more bhp.