Hello..
I have problem with starting my engine.. not matter if is cold or heat..
I not sure, it is only my suggestion maybe..
but if I have connected the tuning laptop, engine will start after few rews...
without anything connected - it can't start.
Have anybody some advice??
or same/similar problem .??
The ECU thinks you're shorting the RX/TX wire on pin 2 and 3 of the serial port, and drops to bootloader mode instead of running the engine.
Make sure your serial port wiring is "nice looking".
(your post edited for clarity)
(thanks for edit...)
Thanks mattias...
I will try to start without serial cable..
So..
nothing bootloader mode,
fuel pump is running after switch ing on... :-\