Car turns but won't start!! Any ideas? sensors? on 2000 Jaguar XJ8

I replaced fusebox, fuel pump, relais,!!

Asked by for the 2000 Jaguar XJ8
Basic checks, Fuel, Fire, & Compression.
Yes, it's been checked, but no success.
Injector pulse, timing.
It run perfect when I parked it, 2 days ago. Timing? I has a chain. Why timing?
It has to fire in the right sequence, and doesn't mean the chain/belt specifically.
1 more answer
Try crankshaft sensor