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Engine_Control_Unit_MS_3_Sport_GT3_Cup_Manual
Bosch Motorsport
The MS 3 Sport GT3 Cup has integrated ignition power stages. The wiring is shown in the
following picture.
Illustration 2:
Integrated ignition power stage
NOTICE
In case of ignition-caused malfunctions, please use screened sensor wires.
A typical 6 cylinder engine with firing order 1-5-3-6-2-4 is connected as follows:
Firing
1
5
3
6
2
4
IGN
A
B
C
D
E
F
INJ
A
B
C
D
E
F
There are max. 6 independent injection output stages for the injection. These injection
output stages can take a maximal current of 2.2 Ampere. Therefore the injection valves
must have a resistance of at least 6 Ohm.
NOTICE
Don’t use Bosch injection valves with 1.2 Ohm.
A few Bosch injection valves have an internal resistance of just 1.2 Ohm. These types can
not be used here.
The MS 3 Sport GT3 Cup has integrated ignition drivers. The wiring is shown in the follow-
ing picture.
Illustration 3:
Integrated ignition drivers
