I am an ametuer, so take this comment with a grain of salt;
To me your issue sounds like a fuel supply issue. Starting and running well for a while then cutting out, maybe fuel in the lines gets used up then there is your problem. Letting off the gas to let the fuel pressure catch up. Old fuel sitting in the lines and the tank for years can clog things up. I'd think about perhaps some blockage in the tank or pump not able to keep up makes sense to me.
If it was spark, air, or sensor related I'd think that would show from startup.
I'd double check the fuel delivery system. If it starts and runs for a while I'd think that you could figure it out without throwing more money at it until you isolate some things.
Good luck. This stuff can be tricky if you cant pull codes. |