Mazda Millenia started well after change of wires, MAF sensor then can't start?

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Car started well and ran well. I parked it and the next day won't start. Changed coil pack, wires and MAF sensor. There is spark, however, the car won't start. It cranks well but can't start,too. Attempted to start it with quick start liquid but did not work. Mechanic check and said it was fuel pump because he took out plug from N*1 cylinder and can't smell gas. It seems gas was not supplied to ignite car. Is fuel pump the cause since no smell of gas on bottom of plug? Please help with suggestion on what to consider from now on to start car!!! Thanks