Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: mar892ree on 04 August 2006, 21:26:07
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Hi peeps,
Despite replacing the complete exhaust and CAT with genuine VX parts and replacing the manifold to block and manifold to CAT gaskets, the 2.2 is still a bit exhausty on start up !
No leaks in pipr work, have checked this several times !
I know the supposed location of the secondry air pump, but have failed to find it !
Give me a clue as to what exactly i am trying to find here ! How big is it, whats it look like etc
Photos would be brilliant if anyone with a 2.2 could take a snap for me !
For the more technical amoungst you, i know what the role of the secondry air pump is, and how it supposidly worlk etc, BUT how exactly does it pump air into the eshaust system, wheres the pipe work !
Were does it enter the exhaust system, is it through the block / head at some point, as its not directly in to the exhaust system, and not in to the manifold !
Cheers
Mark
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As a general rule, the engine management systems with dual lambda control dont have air injection and as such I doubt its fitted to the 2.2.
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As far as I know the 2.2 is the new generation of engines just like 2.6/3.2, and it might not actually have a secondary air pump... This has been done away with on the newer engines as part of a complete revamp of the emission control system, i.e. lower compression and no EGR. But someone may confirm regarding the 2.2....
*** EDIT1 Mark DTM beat me to it... :(
*** EDIT2 but I got there before TheBoy hehe :)
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i don't think air injection is fitted to any of the drive-by-wire Omegas...
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EGR is generaly still fitted, its just the 2.6 and 3.2 were not sold into the states so the NOx emisions were not important.
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*** EDIT2 but I got there before TheBoy hehe :)
i'm too drunk to type fast [smiley=beer.gif]
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*** EDIT2 but I got there before TheBoy hehe :)
i'm too drunk to type fast [smiley=beer.gif]
You'r logged-in on a laptop at the pub? :o
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EGR is generaly still fitted, its just the 2.6 and 3.2 were not sold into the states so the NOx emisions were not important.
It's nice to know that since I changed from the 2.5 to the 2.6 I am no longer feeding my engine (well one half of it anyway) with burnt fuel... :)
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Alas no, unsocialable Stella tonight... :(
Means more for me :)
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Hehhehehhe hahahhaha NO WONDER i cant find the b****y thing ! I,ve been looking for weeks ! Dohhhhhhhhhhhhhhhhhhhhhhhhhh !!!! :o
Oh well, thats that then, no more on me back looking for a glorified hairdrier ! Suits me !
So, apart from the exhaust, CAT, gaskets , what other reasons could i be experiancing an exhausty noise on start up !
I know people have mentioned the 2.2 is a noisy engine !
Cheers
Mark
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Depends what you call noisy, it ain't all that noisy.
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mines noisey when cold, but then again the exhaust is shot.
Compared to my dads which is also a 2.2 but auto, mine is a lot louder.... but i am putting that down to the shot exhuast.
Once warmed up though sounds fine....
Its just the V6's make a much more appealing sound when cold compared to 4 pots :(
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EGR is generaly still fitted, its just the 2.6 and 3.2 were not sold into the states so the NOx emisions were not important.
It's nice to know that since I changed from the 2.5 to the 2.6 I am no longer feeding my engine (well one half of it anyway) with burnt fuel... :)
Well, it actualy feeds both halves as there are two ports in the bottom of the plenum....
.....plus its a good thing, if you can 'go large' on the EGR then it can help economy as its a simple way of dynamicaly reducing the engine cc.
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Didn't know they moved it to the plenum - I thought they did away with it altogether. Thanks for the info!
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Depends what you call noisy, it ain't all that noisy.
I agree with AA......when i first bought the omega....i took it too vx dealer for cambelt/etc change.....they noticed it 'ticked' a bit when cold.....which i hadnt really noticed.....turned out to be exhaust mani cracked.....so if they could hear a bit of a tick (tho obviously bit louder if they had the bonnet open) then the engine carnt be that noisy when cold.
Only thing i can think off.....do you have the sound proofing fitted underneath the bonnet?
Maybe VX dont fit that on the GLS.....cost cutting!?