hey guys maybe someone here can shed some light on my issue .I have a l86/8l90e that has me pulling my hair out with this tranny ,r.e.p issues. I issue I have is that when i drive it and go to slow down to a stop it goes into rep ,or if i gas it hard it will respond but shift 2 or 3 times then go into rep. my other issue is i can not write the tcm after having it unlocked by hp tuners.i can read it but when i go to write it it say write failed .has anyone else had the same issuses. thanks in advance