A) Version with pressure sensor

1 Fuel tank
2 Fuel delivery pump
3 Expansion tank
4 Fuel filter
5 Ring line to injection valves
6 Pressure regulator
7 Injection valve
8 Header
9 Starting valve
10 Throttle valve
11 Throttle valve switch
12 Idle air screw
13 Intake air temperature sensor
14 Air cleaner
15 Auxiliary air valve
16 Temperature time switch
17 Coolant temperature sensor
18 Pressure sensor
19 Releasing contacts
20 Control unit
21 Main relay
22 Starter
23 Battery
24 Cold start relay
25 Fuel delivery pump relay
26 Fuse

Injection system wiring diagramm

1 Plug board - control unit
2 Disconnect plug (engine)
3 Temperature sensor (air)
4 Injection valves
5 Temperature sensor (water)
6 Starter valve
7 Throttle butterfly switch
8 Temperature retards witch
9 Main relay
10 Pressure sensor
11 Release contacts
12 Pump relay
13 Fuel pump
14 Cold start relay
15 Fuse No. 11 (on coupé No. 7)
16 Ignition lock
17 Plug connection terminal 50
18 Starter
19 Coil
20 Pre-resistor
21 Battery

1 ÷ 126 cable No.

1 Cylinder selector switch
2 Red tell-tale lamp
3 Green tell-tale lamp
4 Mech. 0 point adjuster
5 Program switch
6 Program test button
7 Balance knob
15 Ignition coil
16 Distributor
17 Starter
18 Alternator
39 Remote temperature sensor
40 Oil pressure switch
41 Multiple plug for engine harness
111 Connecting point
a) Injection valves 1-6
b) Coolant temperature sensor
c) Temperature time switch
d) Cold start valve
e) Cold start relay
f) Double-action relay
g) Air flow sensor
h) Throttle valve switch
i) Central plug / injection control unit
k) Ground point - supporting bracket/header
l) Plug
m) Resistors
n) Resistors
o) Fuel pump connection

Layout of fuel injection system

Version with air flow sensor
1 Electronic control unit
2 Injection valve
3 Air flow sensor
4 Temperature sensor
5 Thermo time switch
6 Electric start valve
7 Electric fuel pump
8 Fuel filter
9 Fuel pressure regulator
10 Auxiliary air valve
11 Throttle valve switch
12 Combination relay