Non starting Mk2 (51) 1.2 clio.

On turning on the ignition all of the expected lights go out including the red immobilizer light and the electronic fault and pre heating warning light but with the exception of the exhaust gas warning light, the engine turns over but fails to fire, the car has fresh fuel and a spark the cam belt has been checked and is intact, there are no stored faults when a diagnostic check is carried out so far I have replaced the following.

4x spark plugs

Coil

TDC sensor

Fwd/Rear lambada sensors

The vehicle still fails to start. :mad:

any clues