It could be the ECM. However, we need to run through this test and see what it brings us too. I understand that you replaced the CMP and CKP but we could still have a wiring issue.
But first if you have spark on the plug and the plugs are wet we can assume they are firing and the injectors are firing.
When is the last time you changed the plugs? If you were cranking the engine for this issue and the plugs were getting soaked with fuel, they will not fire "enough" to start the engine. Before we go any further, I would change out the plugs just to be sure.
It wouldn't hurt to verify compression on all the cylinders while you are changing the plugs. I doubt this is the issue but clearly we should confirm the compression is good.
https://www.2carpros.com/articles/how-to-test-engine-compression
To answer your question, one coil would not cause a no start as they are called coil on plug meaning it only fires one plug. If one was bad, you would have a misfire on just that cylinder.
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Monday, February 17th, 2020 AT 7:23 AM