Have a 2001 Ford Mustang where it will start but then dies. Replaced the TP sensor and it ran great for one day. The next day same thing it will turn over but then dies. Have fuel all around the lines but not getting the injectors.
I don’t understand “…not getting the injectors”. Are you guessing that the fuel pressure is just enough to start the engine, but then the fuel pressure falls too low to keep the engine running? OK, CHECK it! Check the fuel pressure as the engine is cranking and as it is running, and as it shuts down. One test, such as fuel pressure, can save a thousand guesses.