4G93 will not start

Engine had broken the timing belt, bent 6 intake valves and broke 6 rockers.
Have replaced all 16 valves, lapped in, stem seals, timing belt, head gasket. Cleaned lifters and primed with diesel. Tried to start, no go. Check fault codes with X431 Pro Mini, crank angle sensor faulty, replaced with new, still won't start, starter was sounding bad, replaced with new, replaced all 4 injectors as the old ones were filthy and no-one cleans them in present country. Everything comes up fine with DTC's, all clear and can see engine crank speed, mv pulses injector etc, fuel pressure 385kpa. Took spark plugs out and coils, earthed plugs, yellow spark on all four. Has me stumped?