I have a 2017 hino 268 with air brakes. I have used dx2 to check the stop light switch and brake pressure switch correlation and its precise. But I have no acceleration when in gear. However if I push both the brake and accelerator at the same time it will go. It revs up in park and neutral. Any thoughts? It has been driving me insane. I have tested the switches and pressure switch. Whats next?
