Cross Section
^ IE W OF ENGINE (1978/1979
WITH EMISSION Models)
:ONTROL 911 SC
2 - Air pump filter
3 - Check valve
4 - Aii line io exhaust pot:
5 - Catalytic converter
LAYOUT DRAWING OF EMISSION CONTROL 911 SC ( 1 980 Model)
1 Oxygen sensor
2 Fuel injector
3 Thermo time switch
4 Oil temperature switch
5 Intake housing
6 Cold start valve
7 Vacuum control
9 Auxiliary air valve
10 Throttle valve switch
11 Throttle housing 1 2 Sensor plate
1 3 Mixture control unit
14' 3-way catalytic converter
15 Muffler
16 Fuel injection line
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