since the mega hot weather my car has started not staring very well,

there is fuel & spark and it does try to run, but you have to hold it on the key turning over nearly running for a good few seconds.... it used to be literally turn over once and it was away.

last month it had a new ECT and phase sensor and the plugs are only 1500 miles old - once started if you stop it again, it does fire up straight away, any obvious ones....? cheers.