Engine shuts off when slowing down, stopped or reversing

Hello,

Is your check engine light on? If so what are the codes?
This could point us to the right direction:

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

You could have a dirty mass air flow sensor or it could be a clogged EGR valve.

You might find these articles helpful:

https://www.2carpros.com/articles/how-a-mass-air-flow-sensor-works-maf
https://www.2carpros.com/articles/mass-air-flow-service
https://www.2carpros.com/articles/how-to-replace-a-mass-air-flow-sensor-maf

I have attached EGR and MAF replacement procedures for your reference.
Let me know of any questions.

Thank you.

Good evening,

This could be a dirty throttle body from coking or carbon build-up on the throttle plate. I attached a guide below in cleaning the throttle body for you.

https://www.2carpros.com/articles/stall-at-idle

https://www.2carpros.com/articles/throttle-actuator-service

Another possibility is the EGR valve being stuck open from a piece of carbon.

I would remove the valve and look underneath and see if there is carbon holding the pindle partially open.

Roy