Volkswagen Workshop Service and Repair Manuals

From 10.94 the injection pumps are fitted with a split injection pump sprocket, actuator for idling speed boost, sender for injection period, valve for start of injection and, for normally aspirated diesel engines, a full load stop valve.

Rules for cleanliness

Checking fuel system for leaks => Page 23-10

Actuator controlled load-dependent injecting timing

Actuator for idling speed boost

Valve for start of injection

Full load stop valve (N194)

Notes:

• ◆ Hose connections are secured with screw-type or spring-type clips.
• ◆ Always renew spring-type clips with screw-type clips.
• ◆ Always renew seals and gaskets.