Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: steve6367 on 21 August 2012, 12:23:11
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I have the emission control light on - local VX specilist have switched it off a couple of times for me but comes back, almost always as you lift off from a motorway type run.
Error codes logged are both Lamda sensors, "throttle position not plausible with engine load" and service light short circuit or failed. They are logged but not active in the ecu with exception of service light. Monitoring the Lamda sensors in live data on tech 2 shows them to be working when tested.
Only symptom when driving is unwillingness to change up gear and changing down on a motorway when encountering a slight hill. Most noticeable at around 30mph when it will sit revving just over 3K until you let the accelerator up at which point it changes up.
VX specilist is advising change ECU, but wanted some other thoughts before I spend out.
Steve
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Where are you? Sounds like you need someone who knows what they are doing ;)
I'd be checking live data on the MAF, and looking for possible airleaks first ;)
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In Bournemouth - I can go back and asked them to look at live MAF data, this can be faulty even if no codes logged for it? (they have not charged anything as yet so can't moan too much)
Steve
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I know its a bit of a trek (just beyond Winchester), but I'd be inclined to visit Kevin Wood, as just from your initial post, I've lost faith in your local Vx 'specialist' :'(
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And, yes, codes are just a small part of the jigsaw, offering small clues to what is wrong. Trouble is, most garages don't really understand modern systems, and change parts blindly based on codes. Which is wrong.
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I was a little scepticle, hence the post here - to me the ECU seems like the most expensive thing to change not the first!
Is Kevin a garage? Or member on here?
Thanks
Steve
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Member
http://www.omegaowners.com/forum/index.php?action=profile;u=721
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ABS aside, Omega ECUs are normally very, very reliable.
Kevin Wood is a member here, and knows his stuff.
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Thank you, I will send him a message on here.
I should also have said my display says "Low Beam Fld/Vision" which does not seem related but thought I should leave nothing out. I do not have HID lights which this error seems to relate to.
Steve
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Thank you, I will send him a message on here.
I should also have said my display says "Low Beam Fld/Vision" which does not seem related but thought I should leave nothing out. I do not have HID lights which this error seems to relate to.
Steve
F/L CDX should have HID`s. If no adjuster wheel on left hand side of main lightswitch, you`ve got HID`s fitted
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I have the adjuster wheel 0,1,2,3 and "normal" filament bulbs in the headlights. Did all CDX have HID? Could someone have changed them?
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All facelift CDX had HIDs
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May 2001 is facelift?
Steve
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May 2001 is facelift?
Steve
All 2.2`s were facelift
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May 2001 is facelift?
Steve
Yep, window controls on the drivers door, grill as part of the bonnet
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Thank you
Strange then, defenitly CDX and face life, but no HDI headlights. They look well aged and original too. I shall investigate further.
Steve
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"Low Beam Fld/Vision"
If the HID`s have been replaced with "standard" lights you`ll need a TechII session to re-program the MID to get rid of that fault message
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Update - the adjuster wheel does not seem to adjust the headlights. Pointing at garage door and no movement detected.
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You sure they`re not HID`s ???
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100% - they have. Standard filament halogen lamp in them and the colour temp is too warm for a discharge lamp.
Steve
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Update - the adjuster wheel does not seem to adjust the headlights. Pointing at garage door and no movement detected.
Adjuster wheel isnt dimming dash backlighting?
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Dash lighting dims ok - it is the headlight height adjuster that does not work.
I also note that the holding onto gears does not happen form a cold start, only once warmed up.
Steve
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I have heard from Kevin and will fit in a trip when time allows. Been digging a little deep however.
On the lights, this wiring does not look original to me, any comments?
http://db.tt/zLJP6sSx
http://db.tt/N3jre8qH
With the Lamda and throttle position error, I have discovered a crack across the top of the exhaust manifold. Could this be part of the problem? Itis blowing as you can feel hot gas escape when running. Clearly I will have to change it.
Steve
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I have heard from Kevin and will fit in a trip when time allows. Been digging a little deep however.
On the lights, this wiring does not look original to me, any comments?
http://db.tt/zLJP6sSx
http://db.tt/N3jre8qH
With the Lamda and throttle position error, I have discovered a crack across the top of the exhaust manifold. Could this be part of the problem? Itis blowing as you can feel hot gas escape when running. Clearly I will have to change it.
Steve
HID`s have been replaced with standard projectors
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Fair enough, just need to work out how to get the level adjustment to work now! Are there any wiring diagrams available anywhere?
There are 2 multiple connectors on the lights but without knowing what does what it is hard to test.
I guess whoever changed them in the past tried to get manual level adjustment as the rotary switch is there on the dash.
Steve
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Photo of cracked manifold:
http://db.tt/5tK0a90h
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Went to local scrap yard and found 2.2, but removing the heat shield I found:
http://db.tt/kzzKdkTH
Clearly a common problem then?
Did manage to get some other useful bits however :-)
Steve
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If you are in bournemouth, trents have a v6 with HIDs still fitted in there yard (pick a part), You will have to remove them yourself, but I doubt they would cost much.
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Fair enough, just need to work out how to get the level adjustment to work now! Are there any wiring diagrams available anywhere?
There are 2 multiple connectors on the lights but without knowing what does what it is hard to test.
I guess whoever changed them in the past tried to get manual level adjustment as the rotary switch is there on the dash.
Steve
With your present set-up you won`t. Retroffiting HID`s to a basic spec (GLS or CD) you keep the existing level motor for the manual adjustment. In your case it appears the previous owner has fitted standard projectors + level motors and swapped the main lightswitch over. Manual adjustment will not work as the loom for HID`s is different in that it encompasses the front & rear level sensors and the HID ECU makes automatic level adjustments via signals received from both of them. You may get the auto-adjust to work by fitting the HID level motors and ensuring both sensors are operating correctly, failing that it`s a case of getting the headlights adjusted to an MOT standard and leaving them at that.
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You could check to see if you have a level sensor mounted on the passenger side wishbone to make sure someone just hasnt added an X to the CD!
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You could check to see if you have a level sensor mounted on the passenger side wishbone to make sure someone just hasnt added an X to the CD!
Quote from OP
I should also have said my display says "Low Beam Fld/Vision"
Obviously had the HID`s removed ;)
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If you are in bournemouth, trents have a v6 with HIDs still fitted in there yard (pick a part), You will have to remove them yourself, but I doubt they would cost much.
I didn't see that but the 2.2 CDX I was looking at today had both HID's fitted - I was tempted to take them out but didn't. Can't really work out why those on my car have been changed and I m not too fussed about HID or not, I just don't want an MOT failure caused by no levelling.
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Maybe had a bump in its life and replaced with standard lights, should be fine for the MOT as long as they are adjusted correctly
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You could check to see if you have a level sensor mounted on the passenger side wishbone to make sure someone just hasnt added an X to the CD!
Quote from OP
I should also have said my display says "Low Beam Fld/Vision"
Obviously had the HID`s removed ;)
On one side of my car I have a CD and other a CX (you can see where they have fallen off) the documents all say CDX though. It also seems to have level sensors so I cant really workout what was going through prev owners mind to remove the HIDs!
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Maybe had a bump in its life and replaced with standard lights, should be fine for the MOT as long as they are adjusted correctly
Yes could be - if I get keen I may go back to Trents and get the pair of HID's as I seem to have everything else required. Mind you if it will pass the MOT without level adjustment I might just leave it.
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I should probably focus on my cracked exhaust manifold anyway!
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I should probably focus on my cracked exhaust manifold anyway!
That fault message would bug me though, happened when I changed the wishbones and forgot to reconnect it!
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I should probably focus on my cracked exhaust manifold anyway!
That fault message would bug me though, happened when I changed the wishbones and forgot to reconnect it!
Only way to get rid is reprogramme the MID with a TechII
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You could check to see if you have a level sensor mounted on the passenger side wishbone to make sure someone just hasnt added an X to the CD!
Quote from OP
I should also have said my display says "Low Beam Fld/Vision"
Obviously had the HID`s removed ;)
On one side of my car I have a CD and other a CX (you can see where they have fallen off) the documents all say CDX though. It also seems to have level sensors so I cant really workout what was going through prev owners mind to remove the HIDs!
Mine says CD on the V5C and GLS on the car, its a GLS ::)
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I should probably focus on my cracked exhaust manifold anyway!
That fault message would bug me though, happened when I changed the wishbones and forgot to reconnect it!
Only way to get rid is reprogramme the MID with a TechII
I may have to add that to my list of items when I visit Kevin then!