Won't start on 2003 Kia Sorento

Left car all day won't start break down man said immobiliser the garage said it was not this the car turns over great but just won't fire but if u spray easy start into filter it tries to fire the garage says it going to cost me a lot of money please help

Asked by for the 2003 Kia Sorento
poss fuel pump is bad
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poss fuel pump is bad