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16 Sensors and Calibration
This chapter has the final steps before the first engine start. It basically guides the user through checking sensor
readings and calibrating engine actuators.
16.1 TPS calibration
To perform this calibration, it is very important that the engine is not running, because the throttle is fully
opened and closed.
s and calibrations and then te throttle/pedal
1.
2. .
3. Press e Message Calibration done is shown if the process is ok.
4. In case an error message is shown, check TPS connections.
TPS calibration errors may be:
Inverted and calibrated: means the TPS is connected the wrong way, but is normally working. If wanted, check
connections, but, know that it will work normally connected this way.
Possibly disconnected: check TPS connections. Maybe there is a broken wire or one of the connectors does not
reach the TPS pins. Check with a tester to see if the voltage on the orange wire varies according to the throttle position.
TPS sensor must be calibrated on the first time the ECU is turned on only, and should be recalibrated only when it
has to be replaced or the throttle opening on idle was changed. TPS calibrations are individual by map file.
TPS signal voltage must go up, as the pedal is pressed, and must have at least a 3V difference between the idle
and WOT positions.
16.2 Electronic throttle/pedal calibration
This calibration procedure is exactly the same as the mechanical throttle calibration. The only difference is that the
calibration screen shows voltage value on both TPSs of the electronic pedal.
Every time the pedal calibration is done the throttle automatically calibrates its opening limits. It is very
important that during this calibration the engine is turned off because the throttle is fully opened and closed.
With this done, it is necessary to adjust idle speed control parameters as guides chapter20.2.
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