Pneumatic diagram (HFM-SFI)

P07.51-0452-06

40 Diaphragm pressure regulator

60 Modulating pressure vacuum unit

89 EGR valve

98 Vacuum element for upshift delay

126 Air shutoff valve

128 Check valve (vacuum)

135 Check valve (vacuum supply)

136 Vacuum reservoir

B5/2 Diagnostic module pressure sensor

M16/6 Idle speed control (ISC) actuator

M33 Electric air pump

N3/4 Hot film engine management
(HFM-SFI) control module

Y3/3 Upshift delay switchover valve

Y27 EGR switchover valve

Y27/6 Purge flow switchover valve

Y32 Air pump switchover valve

Y58/1 Purge control valve

a to activated charcoal filter

rt red

gr grey

tr transparent

sw black