Got a 1999 Sunfire 2200 SFI... It stopped in the middle of town while I was driving. When I turned the key ahead, the fuel pump didnt make its regular noise, only a sound of "spitting air". So I changed the The whole thing , only to realize that is still wouldnt start. I checked to see if It had fire, and it doesnt have fire to any of the four plugs. Later I changed the complete coil pack and still nothing. It doesn't whirl fast like it "jumped its time". Could it be a crankpostion sensor? Since these are sometimes a pain to change due to the fact of them getting stuck in there, is there anything else that I could try first? Do you think there is some type of relationship between the fact that the fuel pump seemed like it wasnt working and now no fire?