Helping my mechanic

[Lonestar10]

They got some pedal from someone in Oregon or Ohio that sent them a wiring diagram and harness to make this one work which for driving does but I don't think it has an idle validation switch to cut the signal from the pedal when pedal is fully released it's a floor mount pedal instead of a firewall mount like my t680.

My mechanic figours it will be blown up or some other catastrophe as it's a isx600 cm2350 with what he knows is bad programming but the owner has drunk the Kool aid and thinks it's fine... Let's just say they found the PukeDits box wired into the 9pin that was causing the 9pin not to function for diagnostics and that's probably what smashed a piston through the block on the old motor.