TunerPro User Forum

This is an update from my orginal post in July. I have tried many data streams using a trial and error method based on data streams form other vehicles. I tried the MODE 8(Disable Communications), MODE 7(Command Normal Mode Message), different data words etc.etc.etc. At no time did I ever get an &qu...

Thanks for the reply. I will continue to try to find the proper DS file

I am trying to use TunerPro RT to comunicate with the ECM on my 95 GMC Sonoma. I get the error that it won't connect. I am using the 2 transistor interface that I monitor with an oscilloscope and it appears to be working because I see the echo coming back on the RS232 RxD line. I am using 9600 baud ...