2003 Vauxhall Corsa car wont start

have the vehicle plugged into a diagnostic computer .. repost with fault codes for more assistance

diagnostic told me it was unrecognised codes,
now starter motor been changed,
cam been done,
crankshaft sensor done,
coil pack changed
and spark plugs changed
ticking a lot from carburetor
engine managment light flickering continuesly.

Does start some times and runs ok when started but then will not start again.

any ideas?

Could you please supply the code letter and numbers you got off the diagnostics scan ?? is the management light flickering or flashing on and off .. if it is flickering sounds like you have bad wiring connections to the PCM (computer) let me know

flickering all the time when trying ignition.

you say this sounds like bad wirring connections to the pcm(computer).

would this mean a new ecu?

I really need the diagnostic codes to help further !! if the ECU (PCM) is supplying codes it may not be bad/faulty ... it could be a loose/damaged wire or connector ..