5. FUEL INJECTION SYSTEM MXU 500EXi/MXU500i
TPS/ISC RESET
If close or open the throttle grip randomly,
the ECU may record the incorrect TPS
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
ISC valve to obtain smooth idling speed.
The ECU may record the incorrect ISC
position during the engine speed isn't
working when the ECU or the throttle
body has been reinstalled. It can cause
engine 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, T-MAP, TPS, ISC or ECU has
been reinstalled.
TPS/ISC RESET PROCEDURE
Start the engine till engine temperature to
85°C over on idle condition.
ECU will automatic learn engine new
condition.
5-15
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4.7 / 5