On Full Boost Engine Drops Power & Rough Idle

[sutty]

  Street Tuner said:

  sutty said:

Every time I put the boot in enough for TC to engage for longer than a couple of 10ths of a second, the TC turns off. So it's generally off after the first set of lights.

One would hazard a guess that the settings are not right in your program then

Care to elaborate??

[Street Tuner]

Ive posted this a few times before, but in short....

The 'Torque Module Switch' is turned off

or the 'Minimum Engine Torque Allowed' settings have been modified.

[xlr8ed]

  Street Tuner said:

Ive posted this a few times before, but in short....

The 'Torque Module Switch' is turned off

or the 'Minimum Engine Torque Allowed' settings have been modified.

<{POST_SNAPBACK}>

Great info supplied there Tuner we will look at that when your back in Phil

Glad you posted it again for us as we all dont get to read every post that's written...

jeff

[CountryPhoon]

So what is it that creates the Traction Control problems - simply excessive torque?

If so, what is the limit on torque before the TC problem emerges? Here in snow and ice country (in Winter at least), having the TC operational is a must...

(Not going to bother with edit on my manual Ba, but Bf F6 Auto is coming in March...)

<{POST_SNAPBACK}>

Can any of the experts out there help me with this specific enquiry???

Thanks.

[sutty]

  Street Tuner said:

Ive posted this a few times before, but in short....

The 'Torque Module Switch' is turned off

or the 'Minimum Engine Torque Allowed' settings have been modified.

Are these the options to modify "torque tags" or is that a different kettle of fish altogether?

[Street Tuner]

CountryPhoon if neither of those two settings have been changed then your traction control should remain operative under all conditions.

[sport]

At high RPM / boost with stock exhaust, back pressure holds the valves open hence creating extra distance bteween the valve and lifter which then pump up hydraulically and when you come back to idle with a pumped up lifter, the lifter holds the valves open and causes the engine to idle roughly for a short time until the lifters pump down agian and allow the valves to fully close. A higher flow exhaust sytem will reduce the back pressure which will eliminate the problem or you can get someone like Nispro to fit heavier valve springs which will achieve the same result certainly upto a 10psi map but will have the added benifit of allowing you to maintain a stock apperance if you have concerns about your dealer or insurance.