Function Diagram
1 Exhaust gas recirculation controller
2 Acceleration switch
3 Vacuum switching valve no.I
4 Vacuum switching valve no.2
5 Exhaust throttle
6 Vacuum regulating valve
7 Delay valve
8 Intake throttle
9 Vacuum control valve
10 Boost compensator on fuel injection pump
11 Vacuum pump
12 To exhaust gas recirculation valves
13 Fast idle control device
14 Vacuum switching valve, fast idle control device
15 Vacuum tank
16 To brake servo
17 From air conditioning switch
18 Coolant temperature switch
19 Ambient temperature switch
20 Quick warming up system switch (instrument panel)
21 Quick warming up system relay
22 Starter key switch
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