Alright I got a new programmer but my ABS and EMERGENCY Brake light come on while driving and my speedometer is way off. Has anyone had this happen. How do you fix it? I went to the Modify Parameters part and put that I had the 285's on but still doing this. Any helpwould be appreciated.

 

Well got it running right now. Just took the tune out put the factory one in and then reinstalled the tune I wanted back into the truck, runs fine now. Not throwing ABS or EMCY BRK across the dash no more. Most have had bad connection or read the first time around.

 

my truck did this, in the winter but it ended up being a loose connector for the output speed sensor on the transmission tailhousing