i have a 2008 l76 truck engine
e38 ecu
t42 controlling the 4l80e
engine runs but cant seem to connect to hp tuners via obd2 port
one min it will say detect protocal error, then it will say boot loader time out , ecu not found etc
any help
fully charged battery
some of my other cars will connect instant and others wont
took the e38 put in my dads 57 read it perfect, put dads in mine read perfect wtf lol
mpv1 unit