I'm sorry, I misread your first question. If you spray brake cleaner around the throttle body it will start briefly. This sounds to me like you have an intake leak that is letting unmetered air into the system. Unmetered air is any air that enters the combustion chambers of your vehicle after the Mass Airflow Sensor. The Power-train Control Module(PCM) AKA, "computer" does not know about the air and doesn't compensate for it.
I would probably replace the throttle body gasket. I have included step by step instructions for you in the diagrams down below. Go through them and get back to us with what you find out.
Friday, March 15th, 2019 AT 11:20 PM