Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Tetleysmooth on 01 May 2012, 14:40:58
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Ok, I bought myself a 'new' Omega over the weekend. Drove it down from the Wirral to Essex yesterday. It was ok most of the way, but the EM light kept coming and going. I'm going to try an AFM to cure that one. What is worrying me a little more is this: About a couple of miles from home I had to brake hard because a lorry pulled into my lane. The EM light, ABS and Traction control lights all came on together. The EM light went out virtually straight away, but the other two stayed on and are still on now. It doesn't seem to have made any difference to the running/driving of the car. Speedo and rev counter are still working ok. I would rather the lights weren't on though, so how can I extinguish them?
The car is an X reg 2.5 facelift.
Thanks in advance.
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Would this just not be a sensor failure?
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Would this just not be a sensor failure?
Which sensor?
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i would say its the 1 that doesnt work :D ;D
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Would this just not be a sensor failure?
Which sensor?
One of the wheel sensors. ;) ;) ;) Could just be crap on the reluctor (castellated) rings that the sensors 'look' at. :y
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Could be a wheel sensor mate - one at each corner (need Tech 2 to identify) - or more probably abs ecu - our Estate started with just lights on then later speedo started playing up followed by power steering issues!
Replacement abs ecu sorted - (~£50 off OOF) - but a bugger to fit due to restricted access.
(Abs ecu working ok on my Elite saloon ::) ::))
Good luck with it - having done this job can offer assistance if requested - HTH ;)
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Could be a wheel sensor mate - one at each corner (need Tech 2 to identify) - or more probably abs ecu - our Estate started with just lights on then later speedo started playing up followed by power steering issues!
Replacement abs ecu sorted - (~£50 off OOF) - but a bugger to fit due to restricted access.
(Abs ecu working ok on my Elite saloon ::) ::))
Good luck with it - having done this job can offer assistance if requested - HTH ;)
Goosed ABS ECU is usually associated with a failed speedo too. :y
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Could be a wheel sensor mate - one at each corner (need Tech 2 to identify) - or more probably abs ecu - our Estate started with just lights on then later speedo started playing up followed by power steering issues!
Replacement abs ecu sorted - (~£50 off OOF) - but a bugger to fit due to restricted access.
(Abs ecu working ok on my Elite saloon ::) ::))
Good luck with it - having done this job can offer assistance if requested - HTH ;)
Thanks Colin and everybody else.
The previous owner gave me so much info on Saturday when I bought the car, I was swamped.
I remember him saying something about replacing the ABS ecu and how fiddly it was. Maybe fitted another goosed one. Is this common?
So, I'll have to ask him again. If he just cleaned the old one and put it back, it may need replacing.
Any TECH 2's down my way? Rainham, Essex.
Colin, if you find yourself down this way, feel free to bring your spanners ;D
If only the Elite had been legal to drive, it would be sitting on my drive now.
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I would have assumed a defective wheel sensor would throw up a warning as soon as you get over 5mph??...
ECU seems logical as the warning popped up when the system was asked to actually work, i think thats what you said wasn't it Mr Smooth?
and again this is all assumptions which can be a right royal pain in the behind sometimes lol
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Thanks Mark.
Yep, the lights came on when I applied the brakes brutally. This was just a couple of miles from home.
I had driven from the northern tip of the Wirral peninsular to Essex with no problems.
I suppose I'll have to post a wanted ad then......
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Before you do it may pay to get somebody to do some live readings. it's a shame you aren't closer to me
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How far is High Wycombe to you? OOF meet on Monday, there will be a tech2 there :y
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How far is High Wycombe to you? OOF meet on Monday, there will be a tech2 there :y
Thanks for that, but I'm working Sunday and Monday night :'(
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i would say its the 1 that doesnt work :D ;D
yeah very good lol.... :y
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Could be a wheel sensor mate - one at each corner (need Tech 2 to identify) - or more probably abs ecu - our Estate started with just lights on then later speedo started playing up followed by power steering issues!
Replacement abs ecu sorted - (~£50 off OOF) - but a bugger to fit due to restricted access.
(Abs ecu working ok on my Elite saloon ::) ::))
Good luck with it - having done this job can offer assistance if requested - HTH ;)
Thanks Colin and everybody else.
The previous owner gave me so much info on Saturday when I bought the car, I was swamped.
I remember him saying something about replacing the ABS ecu and how fiddly it was. Maybe fitted another goosed one. Is this common?
So, I'll have to ask him again. If he just cleaned the old one and put it back, it may need replacing.
Any TECH 2's down my way? Rainham, Essex.
Colin, if you find yourself down this way, feel free to bring your spanners ;D
If only the Elite had been legal to drive, it would be sitting on my drive now.
If you ned any verbal assistance ring or pm me Dave.
Elite saloon now sitting on someone else's drive!!
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If you ned any verbal assistance ring or pm me Dave.
Elite saloon now sitting on someone else's drive!!
Thanks for that Colin.
I think the way forward is to get it plugged in first, just so I'm pointing in the right direction.
Glad someone had the sense to buy such a nice Elite. Hope it's a fixer-upper and not a breaker.
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I had an interesting conversation with our fitters at work tonight about this problem.
Their first word was 'sensor'. Then one of them suggested I may have a little play in a wheel bearing. So I told them that funnily enough, one of the mot advisorys was for slight play in the n/s/f wheel bearing.
They reckon the heavy braking moved the wheel enough for the sensor not to get a reading. Sounds bloomin' feasible to me. Their advice was to take the sensor out, clean the 'eye' with a soft cloth, then tap it back in as far as it will go. What do you chaps think?
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Front sensors very often break during removal,so may be worth having a spare to hand before you start. ;)
I may have one as it happens. ;D
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I thought the speed pick up was from the near side rear though?
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Theres a sensor for each wheel.Not sure tbh if the speedo is taken from one in particular. :-\
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I thought the speed pick up was from the near side rear though?
:y
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Probably won't be able to remove the offending sensor until next Wednesday now. Got some lonnnggg shifts coming up, so until then, it's just work, sleep, shower, eat, work. No time for car mechanicals.
Nice to know I can get a replacement sensor easily enough, should I need it. Thanks chaps.
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I had an interesting conversation with our fitters at work tonight about this problem.
Their first word was 'sensor'. Then one of them suggested I may have a little play in a wheel bearing. So I told them that funnily enough, one of the mot advisorys was for slight play in the n/s/f wheel bearing.
They reckon the heavy braking moved the wheel enough for the sensor not to get a reading. Sounds bloomin' feasible to me. Their advice was to take the sensor out, clean the 'eye' with a soft cloth, then tap it back in as far as it will go. What do you chaps think?
If its post 1998, I think you're being overly optimistic.
Rather than break the sensors - likely as they will be stuck on after 12+ yrs - get a code reader on the ABS ECU, and save yourself time and heartache. If that confirms its a sensor, then you know. If the ECU is unreadable, or has an ECU error, or claims no stored errors, then I'm afraid there is only 1 course of action...
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I had an interesting conversation with our fitters at work tonight about this problem.
Their first word was 'sensor'. Then one of them suggested I may have a little play in a wheel bearing. So I told them that funnily enough, one of the mot advisorys was for slight play in the n/s/f wheel bearing.
They reckon the heavy braking moved the wheel enough for the sensor not to get a reading. Sounds bloomin' feasible to me. Their advice was to take the sensor out, clean the 'eye' with a soft cloth, then tap it back in as far as it will go. What do you chaps think?
If its post 1998, I think you're being overly optimistic.
Rather than break the sensors - likely as they will be stuck on after 12+ yrs - get a code reader on the ABS ECU, and save yourself time and heartache. If that confirms its a sensor, then you know. If the ECU is unreadable, or has an ECU error, or claims no stored errors, then I'm afraid there is only 1 course of action...
Sorry Dave tend to agree with above. You will break the front wheel sensors trying to get them out unless you have a guardian angel. My money is on the abs ecu but as Jaime says a code reader will pinpoint the problem. :y
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Apparently, having spoken to the previous owner, he had the ecu repaired last year.
Maybe it's just failed again.
But then I still have a speedo, rev counter and normal power steering, all of which I'm led to beleive, are affected by a failed abs ecu.
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I had the same symptoms last year.It was the n/s rear wheel sensor iirc. You need a code reader capable of telling you what the problem is.
PM incoming.
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PM incoming.
And replied to. Thanks Albs.
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Just read the codes with o***m. Shows CO121-(0) valve relay circuit malfunction - present.
Not sure what that means tbh.Anyone got any specific info please.
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Just read the codes with o***m. Shows CO121-(0) valve relay circuit malfunction - present.
Not sure what that means tbh.Anyone got any specific info please.
Inside the ABS ECU
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Not an electrical relay then ? :(
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Not an electrical relay then ? :(
Yep, inside the ECU ;D :D
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Borrox. :(.................by your tone,I presume your very certain of this Rob ?
Is this the usual "ABS ECU breaked" fault or a different one ? will it be able to be refurbed in the usual way ?
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Borrox. :(.................by your tone,I presume your very certain of this Rob ?
Is this the usual "ABS ECU breaked" fault or a different one ? will it be able to be refurbed in the usual way ?
;D ;D Relay is inside the ECU, powers up when ignition switched on. Don`t think it`s a "user serviceable part"
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Doesnt sound like the usual fault though.Thats a very fine bonded wire which breaks iirc.May be best to source a pump/ecu unit and get some one to fit it. :-\
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Doesnt sound like the usual fault though.Thats a very fine bonded wire which breaks iirc.May be best to source a pump/ecu unit and get some one to fit it. :-\
:)
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Would anyone have a part number for the abs ecu please?
My car is a 2000 2.5 cdx.
Thanks for all the help people.
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Previous owner claimed to have had ABS ECU repaired last year. Could be under warranty if any paperwork or details available ?
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No, no paperwork Albs.
I may just park this car up when the tax runs out at the end of May.
Before this, I was using a Toyota Previa which I bought over three years ago. It has passed three mot's in my ownership now with no work required. I never even have to check the oil level between changes, because it never uses any. Doesn't use water either. I was very reluctant to sell the Previa when I bought this Omega, which seems like a wise decision. I only bought the Omega because I fancied something a little newer and sleeker. If only the previous owner had been totally upfront when he sold it to me, I'd have known what to expect. If I can source a reasonably priced abs ecu (if it's the ecu I need, and not the entire pump), I'll give it a go at fixing it. The car also needs the exhaust downpipe to manifold o rings renewing too. With my work, I just don't have lots of time to spare to work on it.
So, if anyone's got a CHEAP abs ecu to sell, drop me a pm, please.
Or, as already stated, has anyone got a part number? There's a couple of ecu's on the bay of e at the moment, but don't really want to buy one if it's no good for the car.
Any help will be much appreciated.
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No, no paperwork Albs.
I may just park this car up when the tax runs out at the end of May.
Before this, I was using a Toyota Previa which I bought over three years ago. It has passed three mot's in my ownership now with no work required. I never even have to check the oil level between changes, because it never uses any. Doesn't use water either. I was very reluctant to sell the Previa when I bought this Omega, which seems like a wise decision. I only bought the Omega because I fancied something a little newer and sleeker. If only the previous owner had been totally upfront when he sold it to me, I'd have known what to expect. If I can source a reasonably priced abs ecu (if it's the ecu I need, and not the entire pump), I'll give it a go at fixing it. The car also needs the exhaust downpipe to manifold o rings renewing too. With my work, I just don't have lots of time to spare to work on it.
So, if anyone's got a CHEAP abs ecu to sell, drop me a pm, please.
Or, as already stated, has anyone got a part number? There's a couple of ecu's on the bay of e at the moment, but don't really want to buy one if it's no good for the car.
Any help will be much appreciated.
Part number is irrelevant. As long as ECU is from same year, engine & gearbox it`ll do
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So, it's got to be a year 2000 2.5 auto ecu?
That's going to narrow it down a tad.
The ecu's on ebay are from slightly older cars I believe.
Looks even more of a possibilty the Previa will be back in use soon.
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So, it's got to be a year 2000 2.5 auto ecu?
That's going to narrow it down a tad.
The ecu's on ebay are from slightly older cars I believe.
Looks even more of a possibilty the Previa will be back in use soon.
Ideally, but as long as it`s post `98 :y
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Going back on ebay as we speak.....
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This may help - omega spareparts (http://www.ebay.co.uk/itm/VAUXHALL-OPEL-OMEGA-BOSCH-ABS-PUMP-ECU-0-273-004-207-/350205025696?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5189d89da0)
Suggest you talk to these guys to get the correct part - mention OOF (they are OOF members) & they will give you 10% discount
HTH :y :y :y
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Thanks Colin.
Going to try the contact cleaner/hitting with a spanner route first.
Yes, I know it's cheapskate and I'll eventually have to change the ecu.
Didn't even look at the car yesterday, waited for the rain to stop, then eventually tackled my garden.
Going to ATS Euromaster today to have the exhaust blow looked at.
Meanwhile, my Toyota sits in the front garden saying 'why don't you use me again, there's nothing wrong with me'.
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And it looks like the winner is going to be.......the Toyota.
I worked last night, got up early this morning to have a bash at spraying contact cleaner on the connection, but when I realised how much stuff has to be removed, I had to abandon the job. I've been offered a replacement abs unit on here, but it's a little bit expensive for me. I could get myself a cheaper one, but not an exact match for the car, and no-one round here with tech 2 to put it right, so basically, I'm stuffed.
I'm not sure about the exhaust blow now either. Is it the manifold to downpipe o ring or the manifold to head gasket, I can't be sure. Can I warrant spending money next Monday, only to have the same problem afterwards?
The tax runs out at the end of the month and that's the deciding factor. I'm not going to re-tax it without solving these problems first, so the future of the cdx is decidedly shaky. The mot runs out on June 20th, and obviously won't go through as it is.
So, it looks like the Previa bus is going to get another airing, which is not a bad thing really, it's the most reliable and versatile car I've ever owned.
I'm absolutely gutted really, because I really like the cdx, it looks lovely polished up, and is basically a good car.
I can't even offer it up for sale on here because of my post count, so it'll probably be parked in my front garden and I'll do the work as and when.
Ho-hum.