P2440 Diagnostic Trouble Code Discussion for November 2016
Secondary Air Injection System Switching Valve Stuck Open
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| Help Request | Posted | |
| 2008 Audi TT Quattro 3.2L Excessive Emissions, MIL Lamp on VIN: TRUDD38J08 P2440: Secondary air injection system switching valve Bank 1 Stuck open. ... air pump? REPLACED -Replaced Air pump solenoid valve #2 (N320). -Replaced Kombi (EGR) valve. -Replaced Secondary air injection system pressure sensor. TESTED FOR -No cracks or air leaks in the high-pressure hard plastic hose from the air pump to t... |
November 15, 2016 |
