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Right, thank you for the answer Bill, didn`t think of that, tried other vehicle, connects no problem...
Will check it on other gm, and will try with EBCM connector plugged and unplugged.

No one can confirm that hptuner is not capable of connecting to the PCM/VCM and detecting vehicle diagnostic protocol with EBCM disconnected from the wiring???

Ow, ok, i did some research, and found that some guys got it solved securing the EBCM connector, well i dont have the EBCM connected, and basically don`t want to have it connected, since mine is only...

Hi everyone, i`ve got a HP tuner MPVI std version diag tool, Hptuner suit installed and all drivers, no errors what so ever in the device manager.

When i try to establish connection with vehicle,...

Ok, i have a question to the auther of the thread:

In the part where you say that we have to: "Make sure that your Idle Spark Advance table (both “In Drive” and “In Park”) match your High and Low...

Hi everyone, really cool thread, i will be trying to use it to set my idle up and running.

I know this is an hptuner forum and thread, i`ll be using tunercat, and ScanXL for logging, so the cfg...