Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: HockeyDave55 on 01 April 2012, 23:34:48

Title: Huge miss-fire...
Post by: HockeyDave55 on 01 April 2012, 23:34:48
Since the MOT on Friday, it’s all going wrong!
My 3.0 FL has developed a huge miss-fire and the idle is below 500 to the point of stalling. It sounds awful and feels rough....
I don't have any fault lights on....
Any help??? :-\
Title: Re: Huge miss-fire...
Post by: doz on 01 April 2012, 23:39:08
Plugs,leads then dispack
Title: Re: Huge miss-fire...
Post by: dbug on 01 April 2012, 23:46:17
As he said ^^^^^^  :y
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 01 April 2012, 23:57:09
I've gave it a full service including plugs  :-\ ok, I'll give the leads a go then hit the DIS with a big stick!  ;) Thanks guys...  :y
Title: Re: Huge miss-fire...
Post by: dbug on 02 April 2012, 00:41:50
Check all plug leads still connected at dispack mate - you may have disturbed one or more  ;)
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 02 April 2012, 06:48:39
Will do, I did have to change one lead as it was different to the other 5????
When I took that one out, there was water inside the post on the DIS.... I will start there...
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 02 April 2012, 19:58:36
1 set of leads and a DIS pack on order! Let's hoot that cures it???? :-\
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 20 April 2012, 18:27:14
Just a quick up-date...
Yes, the new DIS pack and leads did cure the miss-fire but it seemed that many of us have this problem...
Not only that but also water in the plug wells...
I did find that the foam pad, fitted to the underside of the scuttle was saturated with water! This, and the seal between the large scuttle section and the cabin air intake box must be the main source of water going onto the back of the engine.
With this in mind, I removed the foam pad.
The last two weeks, as I'm sure some of you will know have been quite wet so, this afternoon I had a look at the back of the engine and the top of the DIS pack, all dry!
Not even any water stains on the DIS pack at all....
Title: Re: Huge miss-fire...
Post by: Greg2041 on 20 April 2012, 19:09:05
Sounds good.  How big was your pad (if you will excuse the non-intended pun) and how did you remove it?  I am having the same problem!

Greg
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 20 April 2012, 19:49:58
The pad covers most of the large scuttle section (drivers side) the one with the wiper spindles poking through.
It's healed on by some push-fit metal clips that only go on one way but it is possible to get them off without damaging anything...
I used a small screwdriver to spring the cups open just enough to move them up the pegs they sit on.
Lastly, put your pad somewhere safe to dry out, you might want it again.
Another thing that might help is to replace the foam seal that sits on the end of the scuttle.... It's a closed-cell type foam tape so not all foam will do...

Hope that helps some....
Title: Re: Huge miss-fire...
Post by: Greg2041 on 20 April 2012, 21:12:38
I'll give it a try.  The water in my card was coming from the passenger side where there appears to be a smaller pad.
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 21 April 2012, 05:47:35
I'll give it a try.  The water in my card was coming from the passenger side where there appears to be a smaller pad.
You won't need to take it apart to see if it's wet, just stick your hand under the panel and give it a squeeze... Good luck....
Title: Re: Huge miss-fire...
Post by: Greg2041 on 21 April 2012, 12:29:52
Sopping wet!  :o
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 21 April 2012, 13:19:11
Sopping wet!  :o
Get it out! But try to do it in one piece... You never know....
If I was to test for a leak at work, the engine would be out, the bonnet would be shut and the car would be placed in a rain simulation chamber with cameras placed where we would expect a leak. Or we would spray water with yellow dye in and there you see the leak.
Unfortunately, we can't do that and it's deep and dark in there.... :/
Title: Re: Huge miss-fire...
Post by: Greg2041 on 22 April 2012, 20:10:02
I seem to have my own rain simulator at the moment covering the area.  Yellow water is possible as I've seen yellow snow before.

But I'll get it out anyway!  ;D

Title: Re: Huge miss-fire...
Post by: Greg2041 on 27 April 2012, 18:13:00
All sorted and running sweeter than a sweet thing!  :y
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 27 April 2012, 19:49:39
All sorted and running sweeter than a sweet thing!  :y
Sweet! ;) don't know about you but we've had loads of rain over the three weeks and I have no water on my DIS pack. All good!
Title: Re: Huge miss-fire...
Post by: Greg2041 on 11 June 2012, 16:19:27
No problems whatsoever!

Thank you guys for all your help.  :y
Title: Re: Huge miss-fire...
Post by: HockeyDave55 on 11 June 2012, 23:17:10
No problems whatsoever!

Thank you guys for all your help.  :y
Mine's back but it's from an oil leak into my spark plug wells.... :-/
Bugger!!!