Bosch ECU MS 25 Sport Manual page 12

1 | Technical data
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2. Rotate the engine 78 crankshaft degrees backwards
3. Adjust the position of the crank trigger wheel in reference to its inductive speed
sensor: the longitudinal axis of the sensor must point exactly towards the reference
mark (2nd falling edge after the gap)
4. Rotate the engine further 15 crankshaft degrees backwards
5. Adjust the position of the cam trigger in reference to its Hall Effect speed sensor: the
sensor must be at the begin of the tooth
6. Turn the engine by 345 crankshaft degrees to reach the position of 78° before TDC
exhaust for cylinder #1
7. Verify that the crank trigger reference is in alignment with the longitudinal axis of the
sensor (same as step 3) and that the cam trigger tooth is at the opposite side of its
speed sensor
NOTICE
All angles are shown and indicated in crankshaft degrees
The width of the cam trigger tooth is not important, however it is recommended to use at
least 48 crankshaft degrees (24 cam degrees)
The Hall effect signal may be the inversion of its cam trigger: the tooth effects a "low" sig-
nal at the sensor and vice versa for other trigger wheel configurations the indicated values
may vary.
Engine Control Unit MS 25 Sport Bosch Motorsport