So ive played with this thing and tried 2 different ways.
1 using the serial data cable method in a separate usb port on the laptop and restarting it while connected
2 pinning the output directly into the egr input in the ecm
I re pinned the gauge itself into pins 9-10 (i think, im not by the truck now) for the analog output but still nothing. Lots of posts about the 0330 but im not seeing guys successful with the 0334
06 silverado 2500hd
Appreciate any help