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Author Topic: Speedo  (Read 1910 times)

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GLS20

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Speedo
« on: 26 January 2008, 21:16:32 »
Just bought a T reg Omega 2.0 16v GLS, while driving back home the speedo stopped working. The rev counter still works though. As this is my 1st Omega could any give me any advice on how I could solve this?

Thanks.
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TheBoy

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Re: Speedo
« Reply #1 on: 26 January 2008, 21:19:27 »
does the abs light come on?

does abs light come on with ignition?

tried pressing firmly on tacho to see if dash seats better.
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GLS20

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Re: Speedo
« Reply #2 on: 26 January 2008, 21:25:39 »
Yeah ABS light comes on when ignition is first switched on. Tired pressing on firmly still doesn't move.

Thanks
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TheBoy

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Re: Speedo
« Reply #3 on: 26 January 2008, 21:26:39 »
Is the last letter of you VIN a W or X?
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GLS20

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Re: Speedo
« Reply #4 on: 26 January 2008, 21:43:28 »
Its W
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TheBoy

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Re: Speedo
« Reply #5 on: 26 January 2008, 21:57:01 »
1998 model then.

These seem prone to ABS ECU failure.

When speedo not working, does the fuel computer still read plausible figures?
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Grumpy old man

cem_devecioglu

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Re: Speedo
« Reply #6 on: 26 January 2008, 21:57:44 »
ABS sensors or ABS Ecu problem..
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cem_devecioglu

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Re: Speedo
« Reply #7 on: 26 January 2008, 21:58:31 »
Quote
1998 model then.

These seem prone to ABS ECU failure.

When speedo not working, does the fuel computer still read plausible figures?

fast admin :y
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GLS20

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Re: Speedo
« Reply #8 on: 26 January 2008, 22:05:50 »
its a 99 version prefacelift. It doesn't have a fuel computer fitted.
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TheBoy

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Re: Speedo
« Reply #9 on: 26 January 2008, 22:13:51 »
Quote
its a 99 version prefacelift. It doesn't have a fuel computer fitted.
Its a 1998 car though.  Not that it matters, all post 1998 cars seem prone.

One other system on your car I can think of that takes a speed signal is the radio (no servotronic steering on 4 pot, no FC on GLS).  Does the volume increase with speed?
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GLS20

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Re: Speedo
« Reply #10 on: 26 January 2008, 22:21:34 »
The radio doesn't work because it needs de-coding. So if it is the abs sensors do I need to replace them all?
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TheBoy

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Re: Speedo
« Reply #11 on: 26 January 2008, 22:41:06 »
Quote
The radio doesn't work because it needs de-coding. So if it is the abs sensors do I need to replace them all?
The fact that the ABS light isn't on pretty much rules out the sensors.

Are you based near me or Marks_DTM_Calib who are able to plug Tech2 in and try to work out what is going on.

Its possible the instrument panel has failed, but more likely its the ABS ECU  :'(
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davlad22

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Re: Speedo
« Reply #12 on: 26 January 2008, 22:46:18 »
Bugger that he'd just bought it and was driving home for the first time though  :-[

Hope you get it sorted mate  :y

p.s. these boys are good!
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cem_devecioglu

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Re: Speedo
« Reply #13 on: 26 January 2008, 22:50:55 »
Sometimes, rarely, Abs sensors cant read..Or if theres an electrical problem..

if Abs ECU is faulty it can be repaired..
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GLS20

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Re: Speedo
« Reply #14 on: 27 January 2008, 09:43:35 »
So does that mean I need a new ECU? I live in the north west of England. Willing to travel

Thanks
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