I'm not sure why the new sensor wouldn't allow the engine to start. I have, in the past, gotten bad ones, so that is possible.
As far as a relearn, there is just a variation relearn. It will not prevent the vehicle from starting.
Have you checked for diagnostic trouble codes? By chance, do you have a live data scanner? Last, when you try starting it, does it even seem like it's trying or does it just act like it's not getting fuel or spark?
Let me know if you have a live data scan tool. If you do, check for a few things for me. First, confirm there is an RPM signal when cranking. Also, check the engine coolant temp sensor reading to confirm that isn't way out of line. If you could record it cranking so I could hear it, that may be helpful as well.
Here is a link you may find helpful:
Let me know what you find and if you have confirmed spark to the plugs, you said fuel pressure is within spec, and also if there is an injector pulse to the injectors.
I will watch for your reply.
Wednesday, June 24th, 2020 AT 8:21 PM