well i went to the dyno today for a couple pulls with my intake, dp, and trifecta tune just to see what i was making as pulls were only 45$ for a set of 3. Well i get strapped down, start car, ebrake is off, TC is off and Trifecta is engaged. Car taps out at 4200 and ABS light comes on, service TC, service ESC then it said ESC off, tried it again, same issue. Roll off the dyno ABS goes off so i turn around and get back on the dyno lol. No abs light, TC off once again, 4200 RPM car taps out and ABS light comes back on. ( made 310/344)

steps:
start car
ebrake off
TC off
Trifecta engaged
Punch it at 2300 rpm
Taps out at 4200
ABS light and service lights all come on.. WTF

 

My car kinda did the same thing except it didn't max out the rpms. It was freaking out though, and the damn chime kept going off. Try disconnecting the rear wheel speed sensors next time and see if that helps at all.

 

i couldn't think off the top of my head what would be wrong, unless a speed sensor is going out, but that wouldn't explain why it turned off when he started driving again...

someone help my little bro out??

 

Pretty much your car is shutting down cause it sees your front tires spinning but not the rear. so it shuts down cause it thinks it's protecting itself from damage. try unplugging the front abs sensors and strapping them in place so they wont get caught by anything moving and try again.

 

why is it that it seems only a handful of these cars have this issue? This is only the second or 3rd time I've heard of this happening

 

press and hold the tc button to turn stability control off too.

I've had this problem on all kinds of gm cars at work. You have to make sure all of the controls related to abs are off.

 

Disregard my post, didn't know these cars had that option. Do this ^^^

 

I've had this happen a couple times when the ECM is stuck in launch control mode. I would try turning off the ESC completely before doing dyno pulls.

 

when it happened to me turning the ESC off didn't help at all

 

while wheels were spinning and i was driving on the dyno the "Launch control" was still on the dash in the display

disengaged ESC second time around, did not help at all

 

Sounds like the same issue, then. Maybe contact Vince to see if he has an idea why the launch control is not disengaging.

 

But once im off the dyno and all 4 tires are spinning my car does not hesitate to hit that redline

 

that's because your esc is fixed

 

im lost as to trying to fix the issue, wouldnt unplugging stuff make the lights come on and cause same symptoms?

 

if anything it will just make the same lights come on.

 

Same thing happened to me 2 weeks ago. I told the guy to hold the traction button for ESC to turn off not just to turn traction off. "Ive been doing this for 15 years." I don't give a ****, you don't know my car..

 

The way I dyno'd with TF was press the tc button twice then hold it down til it said "esc off" Make sure Vince has the tune active in tc off mode as well. Oh and btw the abs light came on when I dyno'd but the rpms werent limited. The abs light will go away after you drive a couple mins

 

aaronJ had the same issue when we dyno'd his sstc.. all traction control n all that jazz was off, but it still cut out and we have no idea why

 

Maybe try disconnecting the abs sensors. or pull the abs fuse. on of the two, maybe that will help.

 

Corvettes have this problem except with the rear moving and not the front so it will lock the breaks and the traction systems will freak out.

and mine also freaked out the other day when i did mine but my RPM's were not limited