2007 Hino 258 idles great as soon as you give it throttle is starts to misfire. Has been to the local dealer, they replaced the egr valve, svt solenoid, brake switch, and determined there is a bad splice some where in the harness and did an overlay to get good power to the circuits for vnt, egr and brake switch ( there words on the invoice) which infact did not fix the issue. I have dropped the tank and had it dipped, replaced the fuel filter, fuel sight glass do to some leaking, fuel rail pressure sensor, and fuel pressure sensor, same issue as before. An online Hino dealer stated that the injection timing may need adjusted but can not give me the process of how to do this or if infact this will fix the truck. I have no check engine light on, and scanner will not communicate with the ecu