Engine No Go

I have recently changed my 993 EFI engine for the same unit and have one problem. It will not start. Engine spins over fine but no spark at the plug and also on the initial turn of the ignition key I am not getting any sound from the fuel pump. I have got the dash out replaced the relays underneath the dash still no joy. I assume there is a Camshaft sensor somewhere could any one tell me where it is. I have checked the coil pack and the other little electric fitments underneath the passenger seat with my other Hijet and they work fine. Any help with this problem would be really appreciated Thanks Rob

Have you checked the fuel presure sensor at the front of the rail and have you powered up the fuel pump independantly as while the engine swap was going on the wires may have been disturbed and they are prone to rotting and falling apart.

Does the engine warning light come on when you turn the key?