Mainly talkin about ls2's with separate TCM, I keep reading everybody quikie trans tune write ups, they can adjust shift timing or quickness. Can not on a ls2 TCM??? or this somehow a function of FMC postive and Negative tables?
Is there a way to get to all parameters in TCM.
Cause 1>2 part throttle is harsh at best but 2>3 shift scary soft.
thanks