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- Remove intake hose between Mass Air Flow (MAF) sensor and throttle valve control module:
Repair Manual, 2.8 Liter VR6 4V Fuel Injection & Ignition, Engine Code(s) BDF, Repair Group
- Pull vacuum hose off Secondary Air Injection (AIR) solenoid valve -N112- and combi-valve
- Connect hand vacuum pump VAG 1390 to vacuum hose from combi-valve (arrow). Secondary air system |