4 | Starting up the ECU
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Engine_Control_Unit_MS_3_Sport_GT3_Cup_Manual
Bosch Motorsport
4 Starting up the ECU
4.1 Offline Data Application
This chapter deals only with the main parameters which should be checked before a first
engine start-up. The car’s ignition has to be switched on. The offline data application
guide helps you to get the engine started the first time without problems. This chapter
does not explain the parameters in detail and does not mention all available parameters.
To work on these parameters after the first start-up, please refer the full-scope function
sheet which is available in the “documentation” section of www.bosch-motorsport.com.
CAUTION
Serious engine damages using wrong setup data.
If the TDC angles do not match the expected configuration of a symmetrical or V engine
the setup won’t be accepted and for safety reasons the engine will not start (eng-
setupOK_b = FALSE).
4.1.1 Basic Engine Setup
How many cylinders does the engine have?
The Sports System can be used for engines with different number of cylinders using the
same program.
How many teeth does the crankshaft wheel have?
The System supports wheels with 60-2 or 36-2 teeth. The TDC angles are defined starting
from the second tooth after the gap in the rotating direction. The first cylinder in the firing
order should have its TDC after the gap.
Is the ignition symmetrical? If not, how are the angles defined?
Engines with 6 cylinders can have a V configuration which in some cases requires unsym-
metrical ignition angles. The software Modas Sport supports any variation but you must
define the TDC angle for each cylinder accordingly.
Is the harness wired according to the firing order?
The Sports System is defined to have the first cylinder in the firing order connected to the
output A, the second to output B and so on. This is the recommended wiring configura-
tion. In this case, your TDC angles must be input in ascending order.
First make sure you have installed the calibration software Modas Sport following the in-
structions provided. Then follow these steps:
1.
Look for the characteristic value CYLNUMBER and enter the cylinder number of your
engine.
2.
If the crankshaft wheel has 36-2 teeth set CRANKWHEEL36 to 1. It if has 60-2 set it to
0 (default value).
3.
Enter the TDC angles for each cylinder according to the convention defined above in
TDCCYL1 to TDCCYLN where N is the number of cylinders of the engine.
