What is needed to monitor my engine?
There are 3 things needed to access the diagnostic data stream from a GM based On Board Diagnostic 1 ( OBD1 ) system on your 1982 - 1995 car or truck.
1 - A laptop PC with an available USB port (USB Version), Serial port (serial version) or bluetooth (this version)
2 - Either an ALDL cable, or this ALDL bluetooth adapter
3 - A software program running with the correct stream definition for your car or truck