volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine - Rough Idle, Stalls, Bucking, Poor Acceleration|Page 3684 > < Engine - Rough Idle, Stalls, Bucking, Poor Acceleration|Page 3682
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SUPPLY HOSE

RETURN HOSE

Step 3. Fuel Injection System, Cleaning

^

engine MUST be at operating temperature

^

remove intake air boot

^

disconnect fuel supply hose from plastic mainline (arrow "A"), and fuel return hose from fuel pressure regulator (arrow "B")

^

connect fuel return hose to fuel supply mainline so recirculating loop is formed which returns fuel from the pump to the tank (arrow)

Engine - Rough Idle, Stalls, Bucking, Poor Acceleration|Page 3684 > < Engine - Rough Idle, Stalls, Bucking, Poor Acceleration|Page 3682