If you are using a throttle
position sensor, you will need to calibrate it.
- Go to the ‘Analogue Calibrations’ tabsheet.
- Make sure the throttle is fully closed.
- Click the ‘Learn’ button next to the TPS 0%
reading (see below).

- Verify that the number to the left of the button
changes. It should be somewhere between 100 and 1000.
- Open the throttle completely (on a car, push
accelerator all the way to the floor), and click the ‘Learn’
button next to the 100% reading.
- Verify that the reading changes. It should be
somewhere between 1900 and 4000.
- If the 100% reading is lower than the 0% reading,
this indicates that the TPS has been wired back to front.
- If the two readings are very close, it indicates that
one or more of the wires to the TPS is not connected or the
sensor is faulty. Check the wiring.
- The 0% calibration may have to be repeated once the
engine has warmed up, because on some engines the throttle
is moved by a thermo-sensitive device to increase the idle
air when the engine is cold.
- Verify that the ‘Current TPS’ reading reflects the
position of the throttle actuator (push the throttle a few
times to check its operation).
Note: If you are using a TPS switch this
will need to be set under the Aux in tab.