Alright i fixed the iacv past night and then found this problem. I'll turn the key and it cranks and cranks but never turns over until it starts back firing. I'm thinking it's the ECU or Crank Position Sensor but wanted to see if anyone else hand aby ideas

 

Check the mechanical timing of the engine. Also, do you have any codes?

 

What was the issue and code that led you to clean or replace the IACV? As TweakTech said, put a timing light on it. Also, what did you disconnect to do the IACV?