Eratic idle

[Christian94]

 

 

So i need some help as ive hit a wall with my 2010 2.0 tdi audi a4, problem started with an eratic idle and stalling at any revs below 2000rpm, the car drives spot on in the rev range above 2000rpm, plugged in the scanner and had a fuel presure differental code, so i replace both fuel pressure regulators and the fuel pressure sencor, which cleared the code but still running the same, i have checked the injector return levels they seen good, checked the fuel sender from the tank thats working, checked the inline fuel pump thats ok, the maf sencer was giving inconsistant readings,  i changed the maf sencer still the same! Allmost sounds like its not getting enougg fuel or air, at a bit of a loss with it any ideas? Thanks all

Edited February 10, 2022 by Christian94
Video of idle

[Steve Q]

You've done a great amount of diagnostics and replacement parts 👍 I'm wondering if it could be a lambda sensor/02 sensor.