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[SP_3.2]

I believe that the TC system works by cutting the power to 1/2 of the cyinders . But does this depend on the lack of grip, ie little slip cuts one cyinders, lots of slip cuts 2 cyinders or is more of a all or nothing system.

Thanks

Steve. 

[TheBoy]

It applies brake to spinning wheel. If that not cure wheelspin, it drops 2 cylinders I believe, if still not preventing, cuts more

[Kevin Wood]

Doesn't feel like it drops cylinders on the DBW cars. I reckon it just closes the throttle.

Kevin

[TheBoy]

Doesn't feel like it drops cylinders on the DBW cars. I reckon it just closes the throttle.

Kevin

Ah, could do.

I did read up on it, but that was a fair while back 

[Kevin Wood]

Doesn't feel like it drops cylinders on the DBW cars. I reckon it just closes the throttle.

Kevin

Ah, could do.

I did read up on it, but that was a fair while back 

Just an observation having played in the snow. Once TC has kicked in you can do what you want with the accelerator pedal - even floor it, and the engine runs smoothly with just a little wheel slip. As it gets traction, it gradually adds power until it slips again, then reduces it again. Throttle just seems to set the maximum power it will apply if it thinks it has grip.

It's as if the TC just takes over control of the throttle via CAN.

Kevin

[Marks DTM Calib]

well it certainly drops cylinders on the non-dbw cars

[Andy H]

It applies brake to spinning wheel. If that not cure wheelspin, it drops 2 cylinders I believe, if still not preventing, cuts more

I didn't realise that the Omega could apply the brakes :-/

The TC on my 1994 manual 2.5 V6 CD was useless. Hit a wet manhole cover with the throttle open and one wheel would spin up, the TC would cut the power, the wheel would stop spinning, the power would return and (without spinning a wheel) the TC would cut the power again. If you kept the throttle pressed it would kangaroo up the road

It would do the same if you opened the throttle on the crest of a road hump.

My 2003 auto 2.6 elite is far far better. On the same wet manhole cover I can floor it and not feel when the wheel is on the cover.

On the sheet of icy snow outside the house I have noticed that there is a 'new noise' that I couldn't identify. Wondering now if it was the ABS pump activating the brakes?

[Lazydocker]

well it certainly drops cylinders on the non-dbw cars

Yep... To the point where if it's still struggling for grip you stop moving if you don't switch it off

[Andy B]

well it certainly drops cylinders on the non-dbw cars

Yep... To the point where if it's still struggling for grip you stop moving if you don't switch it off

Same as mine then.
 Unless yours is fubar'd too as TB suggests with mine       

[TheBoy]

It applies brake to spinning wheel. If that not cure wheelspin, it drops 2 cylinders I believe, if still not preventing, cuts more

I didn't realise that the Omega could apply the brakes :-/

The TC on my 1994 manual 2.5 V6 CD was useless. Hit a wet manhole cover with the throttle open and one wheel would spin up, the TC would cut the power, the wheel would stop spinning, the power would return and (without spinning a wheel) the TC would cut the power again. If you kept the throttle pressed it would kangaroo up the road

It would do the same if you opened the throttle on the crest of a road hump.

My 2003 auto 2.6 elite is far far better. On the same wet manhole cover I can floor it and not feel when the wheel is on the cover.

On the sheet of icy snow outside the house I have noticed that there is a 'new noise' that I couldn't identify. Wondering now if it was the ABS pump activating the brakes?

Only mini facelift and better apply brakes, as its a true 4 channel system. Pre 1998 is a 3 channel system, thus ABS ECU canot brake individual rear wheel

[TheBoy]

well it certainly drops cylinders on the non-dbw cars

Yep... To the point where if it's still struggling for grip you stop moving if you don't switch it off

Same as mine then.
 Unless yours is fubar'd too as TB suggests with mine       

The system works pretty well when working, but cannot overcome poor driving - floor pedals on slippery surfaces is goign to be like floored brake pedal in this weather; the system will stop the wheelspin, and reapply all 200bhp, then light them up again.


So, either yours is bust, or you can't drive

I assumed the former

[Lazydocker]

well it certainly drops cylinders on the non-dbw cars

Yep... To the point where if it's still struggling for grip you stop moving if you don't switch it off

Same as mine then.
 Unless yours is fubar'd too as TB suggests with mine       

The system works pretty well when working, but cannot overcome poor driving - floor pedals on slippery surfaces is goign to be like floored brake pedal in this weather; the system will stop the wheelspin, and reapply all 200bhp, then light them up again.


So, either yours is bust, or you can't drive

I assumed the former

Mine is fine but my road is now so slippery I can only just get along it being very ginger with the throttle... Night before last it wasn't as bad as now and all I did was select drive and lift of the brakes (no throttle) and the rear and was fishtailing

Stil driveable, but with care and generally with TC off

[TheBoy]

well it certainly drops cylinders on the non-dbw cars

Yep... To the point where if it's still struggling for grip you stop moving if you don't switch it off

Same as mine then.
 Unless yours is fubar'd too as TB suggests with mine       

The system works pretty well when working, but cannot overcome poor driving - floor pedals on slippery surfaces is goign to be like floored brake pedal in this weather; the system will stop the wheelspin, and reapply all 200bhp, then light them up again.


So, either yours is bust, or you can't drive

I assumed the former

Mine is fine but my road is now so slippery I can only just get along it being very ginger with the throttle... Night before last it wasn't as bad as now and all I did was select drive and lift of the brakes (no throttle) and the rear and was fishtailing

Stil driveable, but with care and generally with TC off

snow mode on?

[Lazydocker]

well it certainly drops cylinders on the non-dbw cars

Yep... To the point where if it's still struggling for grip you stop moving if you don't switch it off

Same as mine then.
 Unless yours is fubar'd too as TB suggests with mine       

The system works pretty well when working, but cannot overcome poor driving - floor pedals on slippery surfaces is goign to be like floored brake pedal in this weather; the system will stop the wheelspin, and reapply all 200bhp, then light them up again.


So, either yours is bust, or you can't drive

I assumed the former

Mine is fine but my road is now so slippery I can only just get along it being very ginger with the throttle... Night before last it wasn't as bad as now and all I did was select drive and lift of the brakes (no throttle) and the rear and was fishtailing

Stil driveable, but with care and generally with TC off

snow mode on?

Wasn't at that point... it's now the only way you can get along the road and need to use more throttle than you'd like because the snow/slush.soft ice is so deep

May have to get out there with a shovel and clear some more Trouble is, only the guy next door to me has made any effort with a shovel... Everyone else would rather struggle

[Marks DTM Calib]

It applies brake to spinning wheel. If that not cure wheelspin, it drops 2 cylinders I believe, if still not preventing, cuts more

I didn't realise that the Omega could apply the brakes :-/

The TC on my 1994 manual 2.5 V6 CD was useless. Hit a wet manhole cover with the throttle open and one wheel would spin up, the TC would cut the power, the wheel would stop spinning, the power would return and (without spinning a wheel) the TC would cut the power again. If you kept the throttle pressed it would kangaroo up the road

It would do the same if you opened the throttle on the crest of a road hump.

My 2003 auto 2.6 elite is far far better. On the same wet manhole cover I can floor it and not feel when the wheel is on the cover.

On the sheet of icy snow outside the house I have noticed that there is a 'new noise' that I couldn't identify. Wondering now if it was the ABS pump activating the brakes?

Yeh, it improved mid 1997 when the 4 way ABS unit arrived....earlier versions had a 3 way setup which was not as advanced