Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: lozzy on 27 December 2009, 16:10:03

Title: My Omega Misfire chapter 2
Post by: lozzy on 27 December 2009, 16:10:03
right new gaskets on and all put back together but errm ive acquired a pipe lol

its still misfiring up to 1500rpm and still stinking off eggs  :'(

wheres this one go?

(http://i25.photobucket.com/albums/c85/lozzycorsa/breather1.jpg)
Title: Re: My Omega Misfire chapter 2
Post by: Andy H on 27 December 2009, 16:17:00
It looks like the one that goes to the fuel pressure regulator. Does the other end go to a spigot next to the throttle body?
Title: Re: My Omega Misfire chapter 2
Post by: lozzy on 27 December 2009, 16:21:16
its connected to this pipe on green corcle

(http://i25.photobucket.com/albums/c85/lozzycorsa/Omega8.jpg)
Title: Re: My Omega Misfire chapter 2
Post by: Matchless on 27 December 2009, 19:40:25
Should be fitted to the fuel pressure regulator, 30 mm dia shiney metal thing under the plennum.
Title: Re: My Omega Misfire chapter 2
Post by: lozzy on 29 December 2009, 08:51:22
well found the pipe re fitted it changed the plugs they were shafted allburnt and rusty from where they was swimming it idled much better but still missing and sounding like a subaru and the engine is hunting  so it looks like im going to have to change the cats  :-/
Title: Re: My Omega Misfire chapter 2
Post by: JamesV6CDX on 29 December 2009, 10:14:52
Don't condemn the cats yet mate

Are you SURE you have a spark on each plug - and no air leaks? Any fault codes?
Title: Re: My Omega Misfire chapter 2
Post by: lozzy on 29 December 2009, 10:28:58
yea i deffiantly sure i have spark on each one because idle over 1500revs the misfire is not there and when driving under laod it feels very restrictive when i booted it in second gear the enfine sounded very strained and topped out at about 40mph  :-? there is no EML light comming up
Title: Re: My Omega Misfire chapter 2
Post by: RobG on 29 December 2009, 10:31:03
As James says. Have you checked for any fault codes?
Title: Re: My Omega Misfire chapter 2
Post by: Andy H on 29 December 2009, 10:37:23
Quote
well found the pipe re fitted it changed the plugs they were shafted allburnt and rusty from where they was swimming it idled much better but still missing and sounding like a subaru and the engine is hunting  so it looks like im going to have to change the cats  :-/
The cats stink of rotten eggs because they are being flooded with unburnt fuel. Fix the misfire first & then see if the cats have suffered.

As others have said, check for fault codes first. There are lots of possible causes for a misfire (but damaged cats isn't one I am aware of)
Title: Re: My Omega Misfire chapter 2
Post by: lozzy on 29 December 2009, 10:41:47
i suppose that if it was the cat it would chuck up the eml light as the last lambada sensor would get a bad value ?

so looks like  next up is the dis pack to be changed
Title: Re: My Omega Misfire chapter 2
Post by: RobG on 29 December 2009, 11:24:03
Quote
i suppose that if it was the cat it would chuck up the eml light as the last lambada sensor would get a bad value ?

so looks like  next up is the dis pack to be changed
Not necessarily. Have you checked for codes?
Title: Re: My Omega Misfire chapter 2
Post by: lozzy on 29 December 2009, 11:35:40
no i havnt would the paperclip test show any codes even if the engine managment light has not been on ?
Title: Re: My Omega Misfire chapter 2
Post by: lozzy on 03 January 2010, 13:19:45
well all sorted got some Leads and its now running like a dream :D so i have changed rockers gaskets plugs and leads leads 

moral of the story if you rocker is leaking get it sorted straight away it will save you money  ;D