Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: andymp on 27 February 2013, 16:29:37
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Hi. Around a month ago I purchased a 2003 omega CD 2.2 dti estate. Running quite rough. After changing the MAF sensor, cleaning the swirl flap assembly (and finding only 3 flaps...) and also changing the badly perished and collapsing vacuum U bend from the vacuum pump to the entire vacuum system, the car now runs fine. Until you corner left pretty hard. When it seems to "kangaroo" and blue smoke comes from the exhaust. In a straight line, or cornering right, it pulls smoothly. Has anybody heard of this before?
Thankyou for reading
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Oh and the eml light doesn't come on when it cuts out. However it comes on when you try power over 3000 rpm and goes back off when below...
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Does it actually stall? That could be hairy I'd imagine :o
Don't think the pedal trick would work on that car so can you get the codes read somewhere?
That would certainly help towards diagnosis.
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Hi. Thankyou for your reply. The car doesn't stall, it judders heavily whilst turning left, such as when pulling away from a roundabout... and is ok once I straighten up. It is when I turn left at speed, so the cornering force is affecting something.
The pedal trick doesn't work, and a handheld OBD-II scanner doesn't find any fault codes (but there again, it didn't when the EML light was on before changing the MAF sensor lol...). Are there likely to be any codes stored when the EML light is off?
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I think if a code is raised then it stays stored until its erased. A fault reader should have picked it up though. Any suspicions around the fuel system?
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I might purchase "Vauxcheck" to see if it finds anything? Don't think there are any problems surrounding the fuel system. No leaks etc.
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Was just thinking the kangaroo / juddering may have been what you'd feel if you were running out of fuel, and therefore a level problem somewhere which manifests itself on a hard turn.
Just an assumption though. I'm hoping someone with proper knowledge will be along soon to help.
And what is 'Vauxcheck' by the way ?
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The fuel starvation idea makes sense... would also explain the absense of the EML. Its 1/4 full at the moment, I might try it with a full tank. Does the 2.2 DTI have a lift pump in the tank?
Vauxcheck :-
http://www.enginecheck.co.uk/vauxcheck/
Its a piece of software that comes with a ELM327 lead. Not sure if it'll be of any use.
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If it makes a difference, when I removed the injector pipework to remove the inlet manifolds, upon reassembly, I couldn't get it to bleed. I couldn't get fuel to the upper injector unions... until I connected the leak back pipes... and then it bled first time.
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The mechanical stuff is all beyond me, but I just thought fuel problems may have made some sort of sense.
I wouldn't advise spending any money at this stage though, as the forum is the best place for help, and I'm sure someone will be able to point you in the right direction :y
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Hope so... Its so near, and yet so far. It makes it difficult when you don't know the history of the car. For example, there was only 3 swirl flaps, and the lower gasket is missing. There was no sign of the 4th swirl flap anywhere, so I wasn't the first person to look at it... I am looking for a swirl flap assembly and then I'll replace the missing gasket.
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Look at the final post about a swirl pot in the tank... Hmm! :o
http://www.vauxhallownersnetwork.co.uk/index.php?threads/help-2-2-dti-engine-problems.200608/
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Indeed, check the swirl pot and pickup in the tank
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I filled it to the brim last night and it still does it. But only when the engine is warm?
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Is the MAP / boost sensor affected by engine temperature?
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My leaning would be towards fuel tank pick up, but as you have brimmed it, that may well cancel that. gravity seems to have an influence, so something moving electrical loom of fuel pipework?
Worth jacking up the vehicle required direction and re test?
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Think its suffering a vacuum problem. Checked the vacuum connections, are the solenoids supposed to buzz? And it seems to be losing vacuum from the carbon canister under the wing or the solenoid that operates it. How does the solenoid /canister work?
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An "My Naff Code Reader" is on order... Should be here tomorrow
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Hope you get sorted pal :y
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Ok... The fault codes stored are :-
Total number of fault codes: 5
P1651 - CAN Receives Error
(0B) - Not present
P0100 - Critical system malfunction 1 (refer to checking procedure: trouble code description)
(06) - Not present
P1110 - Variable Intake Air/Variable Swirl (Diesel) Circuit Open
(04) - Not present
P0400 - Critical system malfunction 2 (refer to checking procedure: trouble code description)
(05) - Not present
P1220 - Critical system malfunction 1 (refer to checking procedure: trouble code description)
(0A) - Not present
Any ideas...
Thankyou for reading
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Found it... changed the diesel filter and its full.of brown sludge. A fair guess that the tank is too... trying to obtain some 'soltron'.
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Found it... changed the diesel filter and its full.of brown sludge. A fair guess that the tank is too... trying to obtain some 'soltron'.
Looks like you have water ingress into the tank,is the filler pipe intact ???
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It was perfect til the weather turned a little wet... thinking you may be right. ???
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Quick update... I removed the fuel filter about a month ago and it was full of brown slime... Today I decided to remove the access panel in the boot, and look inside the fuel tank.
I unscrewed the large lock ring with a nylon bar and rubber hammer, and the top half of the sender lifted out. The inner core of the swirl pot / pickup assembly unclips and lifts out. At the base of it is a plastic filter / gauze whick had what looked like a large graphite grey slug wrapped round it... This piece slides off downwards. I cleaned it with some thinners and blew it out with compressed air... and all is well. :)
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:y thanks for posting this answer , it was spot on , I thought I was going mad when the left hand turn business happened.
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Nice easy fix by the sounds of it :y
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yes I had visions of doom and gloom fuel pump failure, glad its fixed as I like the car.