Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: lachleaves on 14 January 2007, 11:38:38
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On my '97 2.5 V6 auto...
Engine management light came on. Made it to work - no problems.
Started back from work (light still on, again no problems). She drove all the way home (approx. 25 miles) without hiccup.
Any ideas what it could be? Whatever it is that's causing the fault, it doesn't seem to be that serious as it's not impeding on the performance of the car at all.
Just get vauxhall to do a diagnostics??
Thanks,
Lachleaves.
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Try and read out the fault codes yourself. This involves bridging a couple of terminals in the diagnostic connector in the fuse box (if its a 16 pin connector then its terminals 5 and 6), turning on the ignition, and reading out the number of flashes on the SD lamp. If you search for 'omega fault codes' this should give you enough info to do this. The codes should point you as to what is complaining. No need to pay VX lots of dosh at this stage!. :)
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There's a good post on the "paperclip" test found within the forum
http://www.omegaowners.com/forum/YaBB.pl?num=1152601768
If i can manage it...anyone can :)
(btw...I think it is pins 4 and 6...but would have to re read it)
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#(btw...I think it is pins 4 and 6...but would have to re read it)
Pins 4 and 6 or pins 5 and 6. Makes no difference ;)
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On my '97 2.5 V6 auto...
Engine management light came on. Made it to work - no problems.
Started back from work (light still on, again no problems). She drove all the way home (approx. 25 miles) without hiccup.
Any ideas what it could be? Whatever it is that's causing the fault, it doesn't seem to be that serious as it's not impeding on the performance of the car at all.
Just get vauxhall to do a diagnostics??
Thanks,
Lachleaves.
Is it a 2.5 or 2.6? If 2.5, do paperclip test. If 2.6 you cannot do paperclip test, but can you describe what lights look like...
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Thanks everybody.
I'll give it a go. (it's a 2.5 by the way, not a 2.6)
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Welcome, Dame Edna....
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i did it - and it worked... well sort of!
with engine running, it was clear after 12, 129 then 132.
what's the 129 code??
I've checked the 'topbuzz' website - there's no code 129 there (under bosch motronic).
132 comes up as 'exhaust gas recirculation (EGR) valve - incorrect signal'.
does this sound right so far?
don't suppose anyone can tell me what it means?!
many thanks thus far,
lachleaves
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i did it - and it worked... well sort of!
with engine running, it was clear after 12, 129 then 132.
what's the 129 code??
I've checked the 'topbuzz' website - there's no code 129 there (under bosch motronic).
132 comes up as 'exhaust gas recirculation (EGR) valve - incorrect signal'.
does this sound right so far?
don't suppose anyone can tell me what it means?!
many thanks thus far,
lachleaves
About 200 quid at a Vx dealer to change EGR & car may start to stall when slowing at junctions before it fails. Hope it's not faulty :y
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what's the expensive part of the job - the replacement valve or the labour??
and does anyone know what the code '129' is? (it's not on the fault website)
what a predicament - i've only just got it! ... and now i'm facing a £200 bill! (don't suppose the diagnosis could be wrong? a blip?)
...and anyway could the fault re-occur (nothing to do with having a recent exhaust + cats?)
many thanks anyway,
lachleaves
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Soz, rebuilt my laptop and haven't got access to proper codes at moment...
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you know you said 200 quid to get EGR replaced and it may start to stall...?
did you mean that despite paying VX to replace it - IT COULD STILL START TO STALL, STILL BE FAULTY??
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just done a quick search - loads of members keep mentioning this EGR valve and a blowing exhaust.
mine's blowing a bit? (could be a cause for the failure??)
where the hell is this EGR? how do i get at it - as some members have mentioned removing it and cleaning it!
ta
lachleaves
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EGR Valve on V6:
(http://img153.imageshack.us/img153/3729/133867732ux1.jpg) (http://imageshack.us)
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lifesaver!
:D
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It sits on top of the left-hand exhaust manifold (when viewed from the front). Not a bad idea to take it off and clean it with carb cleaner, though I am not sure if it will resolve your particular problem. You can try blanking it off completely, either permanently (it will not fail MOT!) or just to help diagnose the fault
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great help so far...
but still hoping someone can tell me what fault code 132 is??
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132 Exhaust Gas Re-circulation (EGR) valve Incorrect signal
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don't you mean what code 129 is???
I thought you'd already seen that 132 is the EGR valve possibly failing....
what was said earlier was that it may start stalling before the valve blows out completely...
the fault SHOULD be fixed by replacing the EGR valve .....
the expensive part of the repair is the cost of the valve itself.... about £180 or so Ex Vat .(that's what I just paid for a brand new one from Vauxhall last week )
( I believe the Listed full retail inc Vat is actually closer to £280... but No one pays that much in reality ( I hope) )
typical labour charge is half an hour at whatever rate the Garage in question charges....
I have No idea what code 129 might be.... I'm not an expert in these matters... merely a fellow casualty in recent history
regards
Max
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Damn, that Mark's too fast for me !
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V6 fault codes are here:
http://www.omegaowners.com/forum/YaBB.pl?num=1160152415
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Errr... Far be it from me to point out stuff to such an esteemed deity of meegaship..... but...
he asked earlier about codes 129 AND 132.
obviously I assumed that since 132 having been answered by several people... was no longer the query... he meant to ask about 129......
which according to all the pages I've thus far read... including the one your worshipfulness linked to... doesn't exist...
errr damn but I sound pompously pedantic tonight.,... beer... that must be it... I need a beer....
Shame I'm driving backwards and forwards to brownies and parents evenings and the like.... (Not in the Elite though :( )
Lachleaves.... dunno if it's still there, or of any use to you... but I used to get very good, knowledgeable and relatively cheap ( about half the price I'd pay here at a VX dealer ) service from the Vauxhall dealership in Llangefni.... (seeing as your location is listed as Ynys Mon )
in fact I wish I was there now........
Max
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I'll look up 129, hang on...
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129 = EGR Feedback Voltage Low...
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GOD BLESS YOU ALL
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OK, so the 132 indicates a general ELECTRICAL fault with the EGR valve and the 129 provides the detail that the valve is not returning correct position information back to the ecu. These valves are not simple open / closed devices, the ecu can tell it to move to any position between fully open and fully closed.
It is worth removing the valve and giving it a really good clean in the ports, try filling the ports with WD40 or parrafin and leaving it to stand for a while then work the valve in and out to free it off. If lucky the valve will have been physically stuck, the ecu asked it to move but it didnt so the 'incorrect (positional) feedback' code is logged. If this doesnt cure it then the fault is within the electrical head on the valve and you will need a replacement.
The EGR valve is not needed for normal running or for the MoT emissions test, it does help efficiency slightly but this is offset by drivability problems, especially as the valve carbons-up and become slow to respond. The valve ports can be blanked off to cure the drivability issues.
If a replacement valve is needed then I would get one from a breaker.
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ahaaa... i get it now!
from having the car for a week and being mega pleased, to seeing the engine management light come (and my cynical father giving it 'you see, bloody electrics on these modern cars...') - i almost understand what's going on.
i was on the verge of suicide, now there's hope in sight - thanks ever so for that explanation.
ta,
lachleaves
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The EGR is generally electrically reliable. Mechanically they fail.
If cleaning doesn't sort it, get one from scrappy, but also blank it off with a bit of coke can of similar...
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yes, i'm still on about that EGR valve!...
you know when either i've cleaned it or replaced it - assuming it's now working, should the EML go off, or does the system need to be reset?
(i thought i'd read somewhere that the battery needs to be disconnected to reset the system - yes? no?)
oh and one more thing, a friend's told me it should run marginally better if i blanked it completely. true? (if it were blanked, would the EML remain on?)
ta,
lachleaves :-/
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AFAIK there are 2 ways to clear it.
1) visit someone witha Tech2 diagnostics system... they can reset the system memory.
2) 20 clean system boot/starts with NO errors will clear the codes... but this does rather require everything to be fixed first....
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yes, i'm still on about that EGR valve!...
you know when either i've cleaned it or replaced it - assuming it's now working, should the EML go off, or does the system need to be reset?
(i thought i'd read somewhere that the battery needs to be disconnected to reset the system - yes? no?)
oh and one more thing, a friend's told me it should run marginally better if i blanked it completely. true? (if it were blanked, would the EML remain on?)
ta,
lachleaves :-/
The EML will go out once problem fixed (next start). It may disappear from flash codes after 20 clean starts (some codes do, some don't).
There will be no noticable difference between a blanked off egr and a non blanked off one. As long as egr works electrically, the ECU is happy.