A couple of weeks ago my car just stopped and still won't start, since thenI have changed the ptu to a series 2, I have power to all the coil packs and checked their resistance, there is fuel getting to the plugs that not a problem. I took out the CAS spun it by hand and checked all the injectors are firing but still no joy. The spark being emitted seems bright but someone said it should be more blue than a white spark plus my air filter may have got wet but surely this would give some result when cranking the engine rather than absolutely nothing? Anything I might of missed? No error codes on the ecu test either

If there's air, fuel & spark, the only other things you need are compression and correct timing of the spark.