I decided to start this thread rather than continue this one, hope that's okay.
As in the title. Started and drove okay in the morning the other day. In the afternoon, though, she started once and died after a couple of seconds. Tried to start, crank, but no dice. Battery okay (had a battery delivery service come over -- was diagnosed as okay). Enough fuel in the tank per the gauge, but to be sure we put in an additional 10 liters.
Did some research and checked again this morning. "Check Engine" doesn't light up on ignition position 2. Nanocom has "Security mobilized" at "YES". I tried doing Security Learn, but still no dice (and Check Engine light still doesn't light up). On Nanocom, when trying to dive into anything in the BECM I get "Unable to start communications."
Any ideas on what else I could try? I initially was thinking fuel delivery problems based on research (I'm not well-versed at all in engine mechanics), but that was before I came across the engine ECU-BECM sync thing, which apparently I'm having (no Check Engine light). However, the car does crank -- when there's no sync, does the car crank but not start like mine, or is it supposed to not do anything at all when turning the key?
Anyhow, would appreciate any leads!
P.S. I've been away way too long from these boards but I do still have the car, and time away from here doesn't mean she's been trouble-free, quite the contrary!