Hey guys! I just Had my ECU Neptuned and everything works great except when I go Full Throttle while driving my car seems like it wants to set Launch Control lol. Some people tell me to replace my TPS sensor but I would like to have some more advice or input. Thanks Guys!

O by the way...my Vtec does work, My speedo does work, and my oil pressure is never better lol.

 

Take the car back to your tuner & get the problem resolved. Starting to change things on your own is going to cause more problems then good.

 

pay attention to see if you rest your left foot on the clutch.. I had the same problem never realized that I did that..

 

i have a similar problem .. my vtec kicks in but it take about 8 seconds to get from 5k to 8k.. this mostly happens when vetec has already been hit on that startup...
so i need to shut down and crank again to be able to hit vtec normally..

 

OP> If launch control is setup and your VSS is failing so that sometimes the ECU sees 0 for speed, it will kick in the launch control. Get your tuner to check it out. You can also datalog the issue to see if it actually is the launch control kicking in and if your VSS is going 0 sometimes.