P38 turning but not starting not asking for eka

RR P38 2000yr 4554cc automatic

as the title says it turns over just wont fire, i have the EKA but its not asking for it on the dash i have fuel but no spark any ideas please

are there any messages at all on the dash? have you checked fuses?

Does it have a crankshaft position sensor? I know those notoriously go bad on our V8s.
Definitely check for fault codes.

+1 ^^^^^

Sounds like BECM may have lost sync with engine ECU.

CPS is rather common on the Thor..

Is it a two wire or three wire crank sensor?

Going back to play with it today there are no fault codes it was read with an auto logic diagnostic. The only thing after setting the windows is a traction message on the dash

Traction message often comes up when Volts are low and battery is on its way out (even though TC itself is fine).
Cranking multiple times with no start-up will drop the Volts pretty quickly even on a decent battery.
Get it on diagnostics (proper ones).

@Nifty190 Check to see if the engine symbol comes up on the dash on ignition 2 or when cranking, if this is not illuminated, then it has lost sync or a fuse blew in the engine fuse box as what happened to my dads 4.6 V8. The sync mate indicated no power to the ECU, check fuse, low and behold this was the issue I can't remember what fuse number was check the symbols on box cover. Also if this is the case check wiring from the cat-converter as exposed wiring caused a short on the exhaust blowing the fuse.

This was on a GEMS engine though but may show same symptoms above. Hope it helps.