X , check position of sensor ring for immobiliser, sits around ignition key barrel inside the steering shroud. Firstly with key in ignition and see if the immobiliser flashing light on the dash changes. If not remove shroud and approximate the key ,plastic end to the exposed sensor ring, any change to the light? if so you have about 20 seconds to start the car before it will re-set itself. Cam sensor, when removed check the patency of the ring on the cam shaft itself, its possible that this can become loose and can spin around freely which will effect the function, check that its fixed by gently trying to turn it. I use a pencil with a rubber on the end inserted through the hole. The tightness of the sensor is important in that it must not be able to move but over-tightening would in reality only damage the mounting threads. I thought you said on a start that you could smell fuel yet the no. one plug is dry. Check other plugs for fuel after a failed start, if all cylinders are dry you will need to follow the fuel route through from the tank. look at the fuel pump relay in the back of the car. It's under the spare wheel carrier. 3 bolts hold the wheel frame and three little @BA sized nuts and bolts at the rearmost lip to the chassis. You can then lift out the spare wheel support plate. It, the relay sits slightly right of centre and is probably the lowest electrical fitting. an odd 6 sided shaped thing. First check the electrical connection, remove, visually inspect then refit, I use deoxit on my fittings, It's a harsh environment down there!

Keep going it will get fixed!