i checked my coils they are working perfectly fine. my engine cranks but will not turn on. i had checked my fuel shut off button and flipped it up and back down. nothing is working. the batter is running perfectly fine. I went to autozone and they told me i had to purchase a crankshaft sensor so i did. Me personally not being a car tech i couldn't do this on my own. I tried using the starter spray inside of the cold air intake which seemed to work a bit but the engine still did not turn on. Does anyone have any ideas on what could be going on? also i checked all my fuses and they are all fine.