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Launch Control For The 1st Time But Failed


TJ - PPAC
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Hi Guys, I am posting this topic here as I experienced the failure of launch control on Sunday morning. I detail the information as follows and hope you would give me some idea/suggestion.

Back ground: MY15 GTR with full exhaust system changed to Amuse R-1000 Nardo Spec STTi & Turbine outlet; engine light has been on since then

I stopped at the traffic light on a quiet road with no other traffic next or behind me, awaiting the light to turn green.

I flipped the buttons to "R", AUTO mode, then held on the brake with my left foot, and pressed to 4000 revs.

Before I released the brake, a new alert message had popped out but I was concentrating on the traffic light and I didn't read it.

Light turned green and I released my left foot sideways, the rev quickly went up to 8k but the car was slightly moved forward and kept this pace (like sliding on a speed of 3-5km/ph) moving through the whole traffic light. DURING this period, transmission was like dead as it didn't gear no matter in Auto or Manual; It was sliding itself like dead but the engine was alive.

I was a bit panic as it just can't keep it this way in the traffic! about 3 mins it had slided forward, I found it turned back to normal.

I drove it as usual and left the area quickly.

Anyone has any similar experience to share with? Or any idea what happened at all about this?

Appreciated your opinion.

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Question is how long did you hold it at 4000 rpm? the launch really needs to be done quick or you will overheat the trans. Best to get a Cobb AP and dial down the Revs too. I launch at 3200-3400 and it gets away very nicely, and without the brutality of it all.. I had LC set to 4000 on one of my very first launches and it just shit itself and threw error codes due to rear wheel spin. Was lucky I had the Cobb on hand as it enabled me to quickly ECU reset & clear the error codes via the Cobb and I was away again without the limp mode bs..

Edited by Wardski
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