waitey

hi all this my first post and after a bit of advice, i got 2001 galaxy 2.3, it no longer turns over, ive bypassed the starter as i have no feed to it and it still doesnt starts, it cranks but no spark. first thoughts were immobilser as light in door card flashes when trying to crank, so i checked chip in key as for strange reason it was missing, (although key hasnt been apart)so i had a mobile key guy come to me put in a new chip and programme it, still doesnt start, but light in door card now stays on when cranks instead of flashing? ive took out and resoldered relay 30 as i heard it was common and it did have a few dry joints. im still thinking immobiliser? any one got any ideas? regards mike