Will not start after driving it?

These issues could all be related but we need to start from the basics to find out what is going on.

First and foremost, what was the actual code that you have for the MAP sensor and can you check for codes again and see if that code is gone?

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

If that code is still there then replacing the MAP did not fix it. That could explain the hard starting or no start issue.

Here is a video that will help with this issue of not starting but let's get the code first:

https://youtu.be/dCjmRL3p4Cs

Also, we need to stop by a parts store and have the battery and alternator tested using these methods.

https://www.2carpros.com/articles/car-battery-load-test

https://www.2carpros.com/articles/how-to-check-a-car-alternator

If the battery is drained then it can cause these types of issues but we need to start with testing it.

If the battery is drained or the alternator is not charging properly then that will cause dim headlights until the system voltage is sufficient.

Please run through all this and let us know what you find and we can go from there.

Thanks

Okay, I understand. Is there any stalling when you drive? Meaning can you drive it as long as you want but just cannot shut it off? If you do it won't start until you let it cool down? Or will it shut off and then not restart?

Also when it will not restart, does it crank and not start or when you turn the key, does it not do anything?

The first thing that I am thinking if this just cranks and does not start if it is stalling then it could be a crank sensor.

If it is not stalling then this could just be a relay issue for the starter that is causing the starter to not come on.

When this happens, let's check voltage at the starter if it is not turning over and that will help us confirm this.

https://www.2carpros.com/articles/how-to-check-wiring

Below is the wiring diagram that will help with this as well.

Thanks

Very well could be. We are dealing with a spark or fuel issue so when this is happening we need to know what we are missing.

So when this shuts off and does not restart, you can test the fuel pressure then and make sure it is correct at that point.

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

Also, you can try starter fluid in the intake and see if this causes it to start.

This could also be an over fueling issue so if none of this works, try doing what is called a clear flood start. Hold your foot to the floor and start the engine. This will cut the feed to the injectors so they don't pulse while it is trying to start. If it starts then the engine is flooded and we have either a high fuel pressure issue or leaking injectors.