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2005-current VW/Audi 2.0T 1.8T direct injected engines
The engine in the class was a CCTA full chain drive engine. The earlier timing belt/rear chain engines function the same, just the phaser is in the rear and the solenoid is a conventional design.
Sample codes include P0021, P0022, P0016, P000A, P0011, P0012
If you ever wondered how VW/Audi made variable cam timing work? Ever had a trouble code for cam timing and didn’t know where to start? How does VVT work in general? How can I test VVT to see if it is working? What is inside a cam phaser? What is a central (4/3) valve? What is a bearing bridge? What do I do when output tests fail?