Cranks, needs starter fluid to start

I would smoke test it for vacuum leaks. Also check the accuracy of your temp sensors with a scan tool.

It is easy to check the sensors with a scan tool.

Check it after it has been parked overnight. Look at sensor data and the IAT and ECT should read ambient temperature and be withing a couple degrees of each other.

Within (typo)

Please let us know how it goes so it will help others

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.

Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.

3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.

You are 100% correct but welcome to our world. This type of problem is probably one of the toughest things to diagnose. You have to have all your equipment ready or already set up when the problem rears it's head. If it stays dead long enough to test, you're in good shape.

Remember, just because you have narrowed it down to fuel, you still don't know if it's a fuel pressure or an injector issue

Please let us know how it goes so it can help others.

Best, Ken

It sounds like you may have a plugged exhaust system, try looking over these articles to see if they will help:

https://www.2carpros.com/articles/engine-has-low-power-output

and

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please let us know what you find so it will help others

Best, Ken

Hey VIETVET66,

Did you ever get the problem fixed?