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5. FUEL INJECTION SYSTEM MXU 500EXi/MXU500i
THROTTLE BODY
/T-MAP SENSOR/ISC/TPS TPS Sensor T-MAP Sensor
Turn off the ignition switch while
replacement.
Check and confirm if the voltage is over
12V by a voltmeter after replacement.
Check and confirm if the other connectors
are installed correctly after replacement.
Do not damage the throttle body, it may
cause the throttle and idle valve isn't
synchronization.
The throttle body is preset in KYMCO
factory, do not disassemble it by a wrong ISC
way.
Do not loosen or tighten the painted bolts
and screws for the throttle body. Loosen or
tighten them can cause the throttle and idle
valve to synchronization failure.
TPS and ISC have to be reset after the
throttle body T-MAP, TPS, ISC or ECU
has been reinstalled.
T-MAP SENSOR INSPECTION
Support the scooter on a level surface.
Put the side stand up and engine stop switch
is at "RUN".
Turn the ignition switch to "ON" position.
Measure if the ECU voltage outputs to the
T-MAP sensor between the following
terminals of the MAP connector.
Terminal Normal
V/R (+) -V/G (-) 5V
5-25