Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: supercat on 30 January 2009, 23:08:58

Title: speedo
Post by: supercat on 30 January 2009, 23:08:58
hi my speedo is jumping up and down,it only began today i noticed when i turn on the heater or any electrical switch on my speedo goes down to zero soon as i turn them off it starts to work again but it  fluctuates , i noticed last week i kept the car running for ten mins, i notcied that the car had stoped and the battery was flat any ideas thank u all.
Title: Re: speedo
Post by: feeutfo on 31 January 2009, 00:50:40
loose dash/alternator issues?

Any warning lights?

Try paperclip test, page 2 of maintenance guides link below. :-)
Title: Re: speedo
Post by: Elite Pete on 31 January 2009, 08:36:58
give the clocks a push backwards by the info display.
Title: Re: speedo
Post by: supercat on 31 January 2009, 21:33:47
thanks for that i"ve notcited that the power steering has gone a bit heavy are they all part of the same problem thank u
Title: Re: speedo
Post by: MutantCav on 31 January 2009, 21:37:32
Power steering heavy and speedo issues combined probably means your ABS/TC is gonna follow shortly...watch for the ABS and TC lights showing soon

ABS/TC ECU will need replacing  :y
Title: Re: speedo
Post by: supercat on 31 January 2009, 21:49:15
thanks i will keep an eye on that. ps best site on the net.
Title: Re: speedo
Post by: vauxfan2k on 31 January 2009, 21:55:19
I had a set of clocks that did exactly the same thing, tried them in another omega and they still did it, so binned them and got another set, all working fine now. I didnt experience any heavy steering issues tho.

Title: Re: speedo
Post by: Del Boy on 31 January 2009, 21:57:00
Think it's probably your ABS ECU mate keep an eye out for those lights as said.
Title: Re: speedo
Post by: supercat on 01 February 2009, 00:01:34
thanks mate. anything u can addvise on i am greatfull for up till now car has been trouble free 135,000 mls not a spanner been at it this is the first hiccup i've had  thanks once again.
Title: Re: speedo
Post by: Entwood on 01 February 2009, 00:10:13
Prayer ???

If its the ABS ECU then things could get expensive unless you can find one from a breaker .....

Vx want around £400-£500 for the ECU alone ... refurb/repair is around £150, a breaker one MUST be from the same spec/model/engine type/size  (ie  same part number) or it needs setting up with a code reader .... £70 from VX just to plug in ... (cheaper ways are possible .. :) )

HTH
Title: Re: speedo
Post by: MutantCav on 01 February 2009, 07:41:43
Not that difficult gettin a second hand one from breakers on here mate so worry not...doesnt have to be same gearbox type...sameish year and engine size will do I believe  :y5

1998 2.5 v6 will have an ABS ECU ending in 206...think Loo-Knee has one of these atm and hes posted recently on the for sale section  :y
Title: Re: speedo
Post by: supercat on 01 February 2009, 09:36:23
thanks for that. will have a look in thefor sale by the way where is the abs ecu loceted  so i can check the number thanks a lot mate.
Title: Re: speedo
Post by: MutantCav on 01 February 2009, 09:44:56
Its a black box attached to the front of the ABS/TC pump...which is the big metal block to the passengers side of the engine that has the brake pipes coming out of it...

Unfortunately the part number is located on the underside of the ECU so you have to take it off to see! Whose clever idea was that!??
Title: Re: speedo
Post by: supercat on 01 February 2009, 21:06:12
thanks you,ve made my day again
Title: Re: speedo
Post by: supercat on 01 February 2009, 21:07:44
ps jumped in car today steering working fine no speedo working.
Title: Re: speedo
Post by: vauxfan2k on 01 February 2009, 21:09:12
change the clocks before you go taking the abs ecu out. takes 15 mins, alot quicker and worth a try  :y
Title: Re: speedo
Post by: supercat on 02 February 2009, 18:32:25
hi good news jumped in car this morning 4 inches snow on ground put foot on brake abs working i had a look at speedo lo and behold speedo working pas back to normal everything working i,m more confused now than before
Title: Re: speedo
Post by: kevpuk on 09 February 2009, 17:40:29
Help !
Seems I am in a similar boat......today the ABS and TCU lights remained on since starting the engine and for my drive to work. Also, the speedo does not work, although all trip computer functions appear fine......
What is this 'clock changing' talked about ? Other things I can check ?
Title: Re: speedo
Post by: RobG on 09 February 2009, 18:42:55
Quote
Help !
Seems I am in a similar boat......today the ABS and TCU lights remained on since starting the engine and for my drive to work. Also, the speedo does not work, although all trip computer functions appear fine......
What is this 'clock changing' talked about ? Other things I can check ?
Methinks another ABS ECU for you :'(
Title: Re: speedo
Post by: kevpuk on 09 February 2009, 19:13:15
I have read that cleaning up the sensors (n/s/r ??) can help ? Any pointers on whether this helps and where they live ?
Title: Re: speedo
Post by: TheBoy on 09 February 2009, 19:50:53
Quote
I have read that cleaning up the sensors (n/s/r ??) can help ? Any pointers on whether this helps and where they live ?
Methinks you a pissing in the wind, but....

fronts are integral to hub, easily seen with front wheels off. rear each side of diff, easily seen with rear jacked up
Title: Re: speedo
Post by: dbug on 09 February 2009, 21:37:54
Quote
Quote
I have read that cleaning up the sensors (n/s/r ??) can help ? Any pointers on whether this helps and where they live ?
Methinks you a pissing in the wind, but....

fronts are integral to hub, easily seen with front wheels off. rear each side of diff, easily seen with rear jacked up

Lovely turn of phrase TB but in this instance unfortunately very apt :(
Title: Re: speedo
Post by: kevpuk on 09 February 2009, 21:40:51
And it seems that removal is the only way to establish the exact part/model number ? Any idea how many hours labour this job is ? Really think it is beyond me.....  >:(
Title: Re: speedo
Post by: RobG on 09 February 2009, 22:21:21
Have a read of this. It`s a do-able job, just rather fiddly >:( >:( http://www.omegaowners.com/forum/YaBB.pl?num=1152729807
Title: Re: speedo
Post by: MutantCav on 09 February 2009, 23:19:39
Just a matter of removing 6 screws to release the ECU...its just there is no access so you have to remove some stuff to do it...its not hard though...I have an ABS/TC ECU here that will most likely be a perfect replacement for yours...from a 2000 3.0 engined MV6...
Title: Re: speedo
Post by: MutantCav on 09 February 2009, 23:21:17
Oh and its doable in under an hour (i can do it in 30-40 mins or so) but allow an extra hour or two of swearing the first time you do it  :y
Title: Re: speedo
Post by: kevpuk on 10 February 2009, 07:52:39
Quote
Just a matter of removing 6 screws to release the ECU...its just there is no access so you have to remove some stuff to do it...its not hard though...I have an ABS/TC ECU here that will most likely be a perfect replacement for yours...from a 2000 3.0 engined MV6...

Very interested.....how much ? And how will I know it is the right one? Assuming all fitted, will it just not work if it is wrong one ? Any way I can tell in advance ? ......anyone wanna do this job for me - pennies awaiting and can travel.....(pretty please !)
Title: Re: speedo
Post by: kevpuk on 10 February 2009, 13:29:27
OK, so got in the car this lunchtime to drive to work.....and no TC/ABS lights and Speeso working again ! This did all seem to happen following the wet/snowy/sludgy roads......can I take any comfort from the idea that this may be sensor related and due to c%&p on it ? Or is this still doomed, just with a stay of execution  :-[
Title: Re: speedo
Post by: dragonlord on 14 February 2009, 06:36:14
I think it is related to the snow m8

my 3l elite is doing exatly the same yesterday after the snpow melted down my way and i had a mini valit on car

see here http://www.omegaowners.com/forum/YaBB.pl?num=1234587117

seems to much of a cpoincidence that theres more than one do it strait after snow