antilag launch control problems

[john.z]

rpm limit is solely being controlled by throttle position, instead of spark reduction. what am i doing wrong? Ford FG XR8 Turbo

 

launch control[3305].tec launch rev limit 4k.teclog

Edited November 11, 2021 by john.z

[FrogXA]

Hi mate, I am definitely not a tuner by any means but I had a quick look through your file and I noticed that the Torque Module Switch is disabled under System Switches (auF0260).

I believe if this is disabled, you will only get throttle torque reduction and nothing else. This is enabled in my supercharged BF XR8 and all torque reductions (spark ,fuel etc) work fine.

I'm sure more knowledgeable people on here than me will see other things but I believe this might be one of your problems.

[Roland@pcmtec]

Disabling the torque module switch will definitely cause lots of issues and its highly unrecommended. 

[john.z]

Ive just tried that, made no difference.
what else could it be?

this car has been through multiple tuners before me, there were so many weird changes I don’t understand. Should have just started from stretch but didn’t want to until I knew why all the changes were made. They also changed everything in auF0262 to 0 and auF0261 to 1 for some reason. 

[john.z]

okay it starts to work if i set my rpm limit with auF0139 instead, however this has nothing to do with the clutch pedal. why would this allow timing to be pulled but not auF2035?

[jakka351]

On 11/12/2021 at 8:01 AM, john.z said:

Ive just tried that, made no difference.
what else could it be?

this car has been through multiple tuners before me, there were so many weird changes I don’t understand. Should have just started from stretch but didn’t want to until I knew why all the changes were made. They also changed everything in auF0262 to 0 and auF0261 to 1 for some reason. 

This could be the issue, you can disable/modify ETC as a method to limit torque there, if auf0261 is all set to 1 it is allowing the PCM to choose from every possible torque reduction option so it is choosing ETC in this case to limit engine speed. (I think, somebody correct me if inaccurate). This post has better info on those params.

 

[Roland@pcmtec]

Put a completely stock tune back in the car and then change only the items in the guide. 

[john.z]

7 hours ago, jakka351 said:

This could be the issue, you can disable/modify ETC as a method to limit torque there, if auf0261 is all set to 1 it is allowing the PCM to choose from every possible torque reduction option so it is choosing ETC in this case to limit engine speed. (I think, somebody correct me if inaccurate). This post has better info on those params.

 

Sorry should have been a bit clearer on that. Was just saying how all that stuff had been changed prior to me tuning it. I’d reverted nearly everything back to stock before attempting this apart from what I think was changed when my previous tuner dialled in the cams. Auf0260 was just something I missed. 
 

Ive bit the bullet and purchased the single use workshop deal. was able to quickly setup a proper 2 step, rolling anti lag and flat shifting without a problem 👍

 

[john.z]

[JVK]

Coming along nicely John, Sounds great 👍