Struggling to start?

Not starting conditions can be a vacuum lean or the coolant sensor or the throttle body needs to be serviced. Will it run on starting fluid? Will it start if you have your foot on the throttle slightly?

here is a guide to help us get started:

https://www.2carpros.com/articles/car-not-running-advanced

Let's run the codes as well.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is addition information on the subject:

If you have confirmed that you have fuel and spark, and you have recently replaced the crankshaft sensor, but the vehicle is still struggling to start and experiencing sputtering and backfiring, there are a few possibilities to consider:

Timing Issues: While you mentioned that you are confident that the timing is not out, it's still worth double-checking the timing marks and ensuring that they are aligned correctly. Incorrect timing can cause issues with the engine starting and running smoothly.

Faulty Crankshaft Sensor: Although you replaced the crankshaft sensor, there is a possibility that the new sensor is defective or not properly installed. It may be worthwhile to double-check the installation and consider testing the new sensor to ensure it is functioning correctly.

Other Sensors or Components: A malfunctioning sensor or component other than the crankshaft sensor could be causing the starting issues. The camshaft position sensor, oxygen sensors, or even a clogged fuel injector could contribute to the problem. It may be worth checking these components or consulting with a mechanic to perform further diagnostics.

Air and Fuel Mixture Issues: If the air and fuel mixture is not balanced correctly, it can lead to starting problems and erratic engine behavior. Check the intake system for any leaks or obstructions, and ensure the fuel injectors are clean and functioning properly.

Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.