rangerover2.5 dse headache

hello everyone new to the forum and let me tell you i need help, ive owned discos for ten years or more an thought ide treat mysels to a rangey . i bought one last year and had nothing but bother which i overcome ie hot start drama ,battery drain and now just to turn the knife even more keycode lockout engine disabled no code with car when i bought it tried the default code 1515 whats next petrol and match had to buy a rover metro to comute and yes i drive it wearing a balaclaver lol help help the metro dunt do owt for street cred

If it is saying engine disabled-turn ignition on and press key fob button.
Failing that EKA code from dealer