How do you fix the engine that will crank but won't start?

Hello,

There are several factors to consider when dealing with crank but no start scenarios.
You need to check to see if you are getting spark to the plugs and fuel.
Missing either of those can create a crank/no start.

First check for spark.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

If you are getting spark then check for fuel. Can you hear your fuel pump come on?
You need to check the fuel pump relay if there is no fuel.
Also you can test to see if you have the correct pressure.
You should have 55-62 PSI of fuel pressure.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Another possibility is a faulty crank sensor.

https://www.2carpros.com/articles/car-cranks-but-wont-start
https://youtu.be/dCjmRL3p4Cs

Please let me know of any questions.

Thank you.