That's weird. I've never had it freeze. Are you using the original dhp box? Serial? I'm using the avt-852 USB version on Win 8.1. Tried changing the baud rate?
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its a older real dhp box, no inputs. it only works on slow speed. and im using the key span adapter to usb.
Tried it again. This time right from the HPT forums. Boost is crazy high
https://www.hptuners.com/help/tips_a...p_to_boost.htm