Sluggish performance, slow revving past 3000 rpm.
Vehicle has had DPF removed and mapped out by previous garage, new AMM been fitted by previous garage.
I've checked manifold actuators (flaps, turbo actuator and pressure. The only thing I noticed was peak rail pressure only reaching 800 bar, so checked priming pressure at fuel filter (new) and only got 3 psi working pressure!
Popped priming pump out of tank and bench tested and got 16psi with all outlets closed (this has that siphon system for the saddleback tank) which Elsawin says is right. Placed pump back into tank and checked pressure with siphon system connected pressure dropped to 7psi, anybody know if 3psi working pressure at filter is OK?
Thanks Chaps.