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P0411 Diagnostic Trouble Code Discussion for May 2014

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
2002 Audi TT Quattro 1.8L MIL Lamp on VIN: TRUUT28N52
P0411: secondary air injection incorrect flow. ... after engine replacement with p0411 air inj. code. I tested every component in the system and all is functional except the pump relay is missing ground control from the ECM. Wire from the relay to ECM ohm's out good. There is no ground control directly at ...
May 30, 2014