KYMCO K-XCT 300i, Owner'S Manual, Page: 420 / 656

7. Fuel System> TPS ISC Reset Procedure K- XCT 300i
7-60
TPS ISC Reset Procedure
SAFETY FIRST: Protective gloves and eyewear are recommended at this point.
● When opening and closing the throttle grip randomly, the ECU may record the
incorrect TPS reading when the ECU or the throttle body has been reinstalled. It
can cause hard to start engine or idling speed is not smooth when engine
installation.
● ISC has a motor inside, which controls the ISC valve to obtain a smooth idling
speed. The ECU may record the incorrect ISC position when the engine is running
because the ECU or the throttle body has been reinstalled. It can cause engine to
stop, hard to start engine or rough idling speed.
● The throttle position sensor (TPS) and idle air bypass valve (ISC) have to be reset
when throttle body, MAP, TPS, ISC or ECU have been reinstalled.
TPS/ISC RESET PROCEDURE
1. Put the side stand up and engine stop switch is at “RUN”.
2. Turn the key to the "OFF" position.
3. Fully open the throttle.
4. Turn the key to the "ON" position.
5. Release the throttle after waiting for eight seconds.
6. Turn the key to the "OFF" position.
7. Turn the key to the "ON" position.
8. TPS and ISC have been reset successfully.
If the procedure fails, repeat the steps from 1 to 8.