Hi everyone, so I changed the oil on my scion , was thinking about putting new crank bearings in with engine still in car but was looking at all the shit that needs to drop out I decided not to, put oil pan back on now it won't start. Ran fine right before, I can hear fuel pump priming, don't think it's spark cause in the morning when I I try to start it, it tries to start real quick for like two cranks then nothing. If I let it sit awhile it will do same thing. Sounds like my crank position sensor maybe? It sat with oil pan off for a couple days. Any ideas?