COMPUSHIFT II Manual – COMPUSHIFT II Manual
Monitoring & Tuning Your System
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54
4.2.7 Throttle Position Sensor Calibration
Before driving your vehicle, you must calibrate your Throttle Position Sensor as it is installed on your vehicle. Use
this screen to initiate the calibration process and review the results.
The leftmost number shows the smallest voltage recorded during the calibration process. It corresponds to the 0%
throttle position.
The rightmost number shows the largest voltage recorded during the calibration process and corresponds to the
100% throttle position.
The two voltages represent the minimum and maximum positions of the throttle position sensor.
The middle number is the current voltage from the TPS, and should move between the other two numbers as the
throttle is moved.
If the measured throttle position sensor voltage exceeds either the minimum or maximum voltage, a TPS low or TPS
high fault will be recorded in the system.
Before COMPUSHIFT II is properly calibrated, you will see "0.00" as the left-hand and right-hand numbers on the
screen. In this situation, the system records both TPS low and TPS high faults until calibration.
During the calibration process, the left and right numbers are updated as the TPS is moved, defining the range of
motion for the sensor which will result in the 0% and 100% readings.
Throttle Position
Sensor Calibration
0.00 < 0.04 < 0.00
Button
Function
Press the "Select" button to begin the
During the calibration process, you will see "Calibrating" at the top of the screen.
Calibrating
2.69
0.05 < 2.51 < 2.52
For instructions on performing the calibration, see the page:
