has problem Check eng. light on cranks no start waited for a while then it would start. concerned took to dealer fault found dirty MAF sensor good for a month. got in it crank no start check eng. light on waited with switch off till auto lights out tried again it started. brought it home parked it. know its cranks but no start thinking dealer said maf was dirty i got maf sensor and installed still have problem. got out old 2003 scanner tried 2004 newer no codes tried domestic no codes tested fuses no problems found getting udates for scanner next week. can anyone help?

 

is it getting spark? fuel pressure? injectors opening?