I appreciate the suggestions. Yes, the codes were pulled using my VAGCOM software over CAN. When it failed, I didn't pay attention to the fuel pump priming in the on position, but have been listening for it ever since, and every time it starts, I can hear it prime for a few seconds. I did notice the RPM bouncing around 200rpm when it failed so kind of ruling out the crank position sensor. Since then, I picked up an in-line spark tester, Noid injector tester, and fuel pressure test kit, and the laptop all sitting in my trunk ready for the next time it fails. Fuel pressure at the rail is 50PSI after priming, and 59PSI running - so there is the baseline I'm working from. Is there anything else I should look for next time it fails on me? What would potentially cause a crank/no-start and not register an engine fault code? I guess it's a waiting game at this point as I can't really do anything but drive the hell out of it and hope it breaks down so I can do more diagnosing - as messed up as that is.
Monday, April 17th, 2023 AT 12:36 PM