hi bud I have repaired the cam sensor wiring and the problem still persists do you kno what the fuel pressure is meant to be? it peaks at 4.5-5 bar and drops to 3.5bar at 4000rpm when the black smoke and missfires happen is this enough pressure just not sure ? any help would be greatly appriuciated when I accelerate slowly it is fine just when I stomp on the throttle. cheers jay