PIAGGIO 633823 Service Station Manual page 163

MP3 250 i.e.
Possible Cause
Engine revs irregularly
ENGINE IRREGULAR PROGRESS WITH VALVE SLIGHTLY OPEN
Possible Cause
Intake system cleaning
Intake system seal
Ignition system
Parameter reliability
TPS reset successful
Presence of faults detected by the self diagnosis
Poor performance at full throttle
POOR ENGINE PERFORMANCE AT FULL POWER/ ENGINE IRREGULAR PROGRESS
Possible Cause
Presence of faults detected by the self diagnosis
Spark plug power supply
Intake system
Parameter reliability
Fuel supply
Diffuser and throttle valve
Additional air pipe and Stepper
Spark plug wear check
Throttle valve position signal
Coolant temperature indicator
Intake air temperature indicator
TPS reset successful
revolution timing sensor
Coolant temperature
ON PICKUP
revolution timing sensor
Coolant temperature
Filter box (sealing)
Intake sleeve (sealing)
Throttle valve position signal
Coolant temperature indicator
Intake air temperature indicator
Fuel level in the tank
Operation
Muffler welding
Operation
Air filter
Intake sleeve
Filter box
Ignition advance
Pump relay
HV coil
Injector
Air temperature
Lambda sensor
Operation
Pump relay
HV coil
Injector
Air temperature
Lambda sensor
Spark plug
Shielded cap
HV cable
HV coil
Air filter
Ignition advance
Fuel pressure
Fuel filter
Injector capacity
INJEC - 11
Injection