I went to look at a LBZ to buy today, after I drove it I wanted to check the balance rates on the injectors and see if it had any codes. The guy mentioned he thought it might have a tuner on it because it ran pretty good for a stock truck and would blow smoke if you really got on it, but he had no proof because he bought it that way. When I hooked up my V2 and lappy it connected to the vehicle fine, finds the ECM/TCM, pulled the OS, validates the PIDs, but when I tried to start logging data is gives an error that says "no response from vehicle". I disconnected/reconnected, restarted truck/lappy...same problems. Never seen this before.
I attached screenshots below for reference. Any ideas?
I attached screenshots below for reference. Any ideas?
