Sorry for the late reply lads...

Yea jano it's his old loom

Right, racking my brains with this car now. New coil pack, genuine ignition amps and new fuel pump fitted... I now have loads of fuel at the pressure valve on the fuel rail, 3 of the injectors are pulsing and can smell fuel in the cylinders when I remove the spark plug ( I haven't removed the injectors yet to see ) . All 4 spark testers light up when cranking the engine over but it still won't start. I've removed a spark plug and grounded it to the head but no spark at all so why would the testers light up but get no spark at all ?