I've been running into a issue with my grizzly stalling when I give it fast full throttle at Idle. Filters clean, spark plug is new, pulled and cleaned injector, and have new fuel. The atv seems to run fine if you go slow into full throttle. I also have a velocity ecu. Unfortunately I can't test my TPS with this unit. Any idea what else I can try. Full pressure is one thing I've not tried, but I believe it's good since she still rips.