Hi guys, I'm new to the forum and I write from Italy.
Sorry for the writing but I write with the translator, I hope to make myself understood.
I'm trying to recover an xk8 that was abandoned, I replaced the engine but now I have some problems with the starter.
I did a lot of tests
I checked all the fuses, the inertia switch, the relay of the starter motor, I checked the key trying to disarm the anti-theft by turning the key in the ignition lock
Everything is in order but turning the key the starter does not turn. I don't know what to check anymore. Can anyone give me a hand?

 

You can remove the starter relay and put a JUMPER WIRE across the 3-5 (30/87) relay terminals in the relay socket.
That will energize the starter circuit DIRECT without the key.

Check the ECM for a Diagnostic Trouble Code P1260.

That is the security code for KEY NOT RECOGNIZED to disable the car during a 'theft-attempt'.

 

Thank you for your reply. I have already tried the jumper cable and the starter motor turns.
No key error in the ecuNo key error in the ecu.

 

All sorted thank you everyone.
Turns out to be the key and alarm fob, reloaded new software with the mobile electrician and now all good. With a new MOT and sun shine coming we are back on the road... thanks to all on this forum for your support