i had a renault laguna 1.9 dci run on oil from turbo failure,we had to replace engine & turbo,when all reassembled it was running very rough & smoking,had to get injectors on bosch bench test to show fault,then ended up replacing all 4.so i would say it is highly possible the injectors may be damaged.but i must say i did not have the training & leak off tool guages then so i would have thought thinking back that the leak off test should show fault with injectors unless its just the spray pattern affected & not the volume of fuel?
hth
colin
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