i'm unable to connect using tunerpro rt. I have a 91 and im using an autoprom, i can emulate, burn chips etc. But when i test the adl cable port #3 it says cable found and functional. But when i try to connect it gives me a connection failed message. When i go back to try and test my cable connection usng the same port it no longer detects it. Am i doing somehting wrong, im trying to diagnose a problem with my car and not being able to read the data is not helping any help is appreciated, thanks

 

I dont use TPRT but that thread has been posted numerous times.

I would do a search as well as check "Magnus" posts for his answers or tips.