Fill up fuel filter with diesel purge. Key the ignition, crank. Repeat. I bet you've got a leak in the canister (o-ring not seated) or canister not filled with fuel
Jesus, you can't use ****ing ether in diesel engines built in the past 25-30 yearsAll sorted. Made sure fuel getting to filter and full. Connected a jump start battery, opened the air filter, got my daughter on the ignition key and fed it Start Ya Bastard (aerostart) until it did. Running beautifully now, all engine faults cleared. Air purged.