Hello everyone and hello from Croatia!
I have found lots of useful info in this forum and thank you for that
So, two months ago I got a polo g40. I bought a car with engine problem.
Here is the thing:
When starting and the engine is cold it is running like a minute or so.
Punching throttle, it dies immediately.
When it gets warmer it stalls every 10-15sec.
I have change fuel relay
Co pot
sparks
I have checked all wirings
Plug new ECU
measure pressure in rail and it is OK
lambda is OK also
check blue temp sensor, also OK.
ISV cleaned...
a lots more of stuff checked
No faults...
It has been a few weeks in VW and they found nothing.
Do you have similar problems or maybe know what to look next?
here is a short video of how engine works.
https://www.youtube.com/watch?v=YxfLeEtUAlM