ok...changed the spark plugs and no luck :( same problem happenin. before the cambelt change it cut out once and went back 2 normal after that n didnt kick in til 5 months later, which is now.
when i had coil pack problems it was actually misfiring. when i do drive it now it doesnt misfire. it just cuts out completely n when i got it read it gave codes P1300 (Igniter Circuit Malfunction no.1) and P1310 (Igniter Circuit Malfunction no.3).
this problem started happening before timing belt was changed but not as often as it does now. i have changed the camshaft position sensor and the crankshaft position sensor too.