tests carried out

low pressure flow & pressure test ok
high pressure test ok
ignition bypassed
fuel pump relay bypassed
fuel pump amps check
fuel tank & pump checked for contamination
fuel pressure regulator seal checked then replaced
third piston shut off valve checked
live data observed looks ok
injector leak back test at idle ok
ecu tested
refitted to day
injector leak back test at 2000 rpm ok
injector leak back test on fast accereration & decelleration no3 injector failed
new injector to be fitted next week , hope thats all it is.
shall report when road tested
thanks for your input . we are an independent garage.

regards


john