Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Julian on 29 October 2010, 19:49:20

Title: Kangeroo forwards but great backwards!
Post by: Julian on 29 October 2010, 19:49:20
I have picked up an old omega 2.5td, with a problem which is driving me nuts. The car will not drive forward above say 10mph without violent lurching. The engine revs like normal in neutral and the engine is normal in reverse.
     The engine warning light always goes out, which could be the first time I have wanted a warning light to stay on. The accelerator pedal sensor has been dismantled  and is perfect, shame. The ecu may have a seperate map for reverse  which may explane the problem and means the ecu is bust. If you have ever come across anything like this or have any ideas that would be a great help.
      Problem solved thank the lord, two great big bundles of wires just behind the battery had rubbed against each other great design, just hope no damage to rest of electrics.
Title: Re: Kangeroo forwards but great backwards!
Post by: hoofing it on 29 October 2010, 20:03:49
First of all you should do a paperclip test.
If the ecu was bust the engine wouldn't start.
The pedal sensor could be the problem if you say it's been appart.
Title: Re: Kangeroo forwards but great backwards!
Post by: Omegatoy on 29 October 2010, 20:11:49
Quote
First of all you should do a paperclip test.
If the ecu was bust the engine wouldn't start.
The pedal sensor could be the problem if you say it's been appart.

Hmm would tend to suspect torque reaction causing a wire somewhere to short, engine when going forwards would be tilted very slightly to one side and the other way in reverse?
only thing i can think of if as you say the pedal sensor is good, could try cleaning the injector pump internals with diesel magic trick?
Title: Re: Kangeroo forwards but great backwards!
Post by: Kneepad on 29 October 2010, 20:42:29


is this an autobox or manual?
Title: Re: Kangeroo forwards but great backwards!
Post by: MutantCav on 29 October 2010, 20:57:49
Are you reversing at over 10mph?? Maybe the problem only happens over 10mph in reverse but you never actually achieve it??
Title: Re: Kangeroo forwards but great backwards!
Post by: Andy B on 29 October 2010, 21:17:19
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.....
Hmm would tend to suspect torque reaction causing a wire somewhere to short, engine when going forwards would be tilted very slightly to one side and  ......

this was the exact problem we had with SWMBO's auto Hyundai a few years back.
Title: Re: Kangeroo forwards but great backwards!
Post by: Omegatoy on 29 October 2010, 21:41:49
Quote
Quote
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Hmm would tend to suspect torque reaction causing a wire somewhere to short, engine when going forwards would be tilted very slightly to one side and  ......

this was the exact problem we had with SWMBO's auto Hyundai a few years back.

thanks god !!
 ;D it was the only thing i could think of that would cause such a thing but was a bit worried it was to far out of the box thinking!!!
Title: Re: Kangeroo forwards but great backwards!
Post by: Andy B on 29 October 2010, 21:47:21
Quote
Quote
Quote
.....
Hmm would tend to suspect torque reaction causing a wire somewhere to short, engine when going forwards would be tilted very slightly to one side and  ......

this was the exact problem we had with SWMBO's auto Hyundai a few years back.

thanks god !!
 ;D it was the only thing i could think of that would cause such a thing but was a bit worried it was to far out of the box thinking!!!

It was something I'd never have thought of, I even went to the extent of having the gearbox refurb'd & it was still like it. A local garage sussed it in the end.  :y