What could be the cause of my car not idling?

It runs great over 1k rpm, but if I let off the throttle, it judders trying to run, and then dies.

What car have you got?

If petrol, idle control valve

What car have you got?

If petrol, idle control valve

 

its a 1.9 tdi with 150 injectors and hybrid turbo

Not idle control valve then! That must be ecu related then perhaps? Not sure what else holds the idle.

You need to plug it into vcds to find the fault codes.

 

When was the last air filter changed ?

 

DB.