I've got A3 Sportback 2005, 2.0 TFSI and a problem I cannot get rid of. I hope someone here could help.
My Vag reports error:
008583 - Bank 1; System too Lean at Idle
P2187 - 004 - No Signal/Communication - Intermittent - MIL ON
and an orange "check engine" indicator is flashing above the steering wheel.
My mechanic replaced PCV valve, looked for some leaks, cleaned engine valves.... Nothing has changed. Injectors, coils, spark plugs and fuel pump are OK. When we clear engine error with vag it takes about 150 Km to see orange diode again. We are running out of ideas what is wrong.
If you have some suggestions please help.