calibrating trottle position sensors m400

[opel16]

Hi

I have a m400 with fly by wire throttle.
How do i calibrate the throttle sensors?

Regards Phil

[RossB]

Setting the High and Low for TP & TP2:

When setting the high & low TP (on the Adjust menu, select Sensor Setup > Throttle Position Hi/Lo) values for the two pots on the Throttle Body (TP and TP2), the throttle must not move while setting the Lo value on each pot, and similarly for the Hi value. This is to ensure that both pots read the same - otherwise a diagnostic error may occur.
It is recommended that one or both of the Auxiliary output wires that control the DBW motor are disconnected whenever calibration is being carried out.
Using a feeler gauge of approx. 0.5 mm, press on the butterfly until it clamps the feeler gauge and then set the Lo position for TP and TP2. Then move the butterfly to full throttle, i.e. 90 degrees. Ensure not to close the throttle butterfly to its physical stop, or open the butterfly past the fully open position. This will upset the control and cause the servo to draw excessive current.

Setting TPD & TPD2 High and Low:

The TPD and TPD2 Hi and Lo positions (on the Adjust menu, select Sensor Setup > Throttle Position Hi/Lo) are set using the foot pedal. Again ensure that the pedal doesn’t move while setting the Lo (and Hi) position on each pot.
When setting the TPD and TPD2 Hi position make sure the pedal is fully depressed taking into account floor carpet and pedal flex. Any over travel during operation will cause an error.

Errors:

If any error is detected then the power to the servo motor is shut off. This includes both the high and low side drivers so that a single short to 0 V or +12 V, either in the wiring or the driver, will not prevent the power from being shut off. When the power to the throttle body is removed, springs will return it to a default position of about 10%. If the control loop has shut down, the only way to restart it is to cycle the power (ECU re-start).

[opel16]

Thanks for your help Ross

Regards Phil