hi, just a update. removed imv solenoid, tested on workbench, plunger is moving in & out when power supplied to it. so now refitted. done a leak off test. no 1 injector return is filling its bottle a lot quicker than 2,3,&4. 1 inch of fuel in no 1 . the rest under 1/4 inch ( just as a rough check) didnt measure quantity. which looks like no 1 injector is faulty. also new fuel filter fitted. , switched ignition on. glow plug light was flashing ( never did that previously) went off after 30 seconds. cant start engine at the moment as 2 of the return pipes were brittle/leaking. so will fit full new set.. prob fit new fuel pressure sensor as well. no swarf or dirt in the pipes. just hope it may be no 1 injector causing the engine cut out & the dreaded po251 code. & not the fuel injectiion pump. ! regards, steve.