It ran fine yesterday. Tried to start it with the cat off after I finally got it out, no dice. Just crankcrankcrankcrankBAM. So I thought there wasn't enough backpressure and threw the cat back on temporarily, but nothing changed. What gives?

 

Check for fuel , spark and compression. Also did you reconnect the O2 sensor.

 

I got it working. Just took the distributor cap off and cleaned the contacts. I guess water got in it after I washed the engine bay yesterday, even though it ran fine after washing..

 

The O2 sensor would never cause a non start.

 

Check your timing belt. Open the oil cap and see if it moves. If it doesnt move the problem is the timing belt.

 

Like I said, it's fine now.