Neco Azzuro GP125 won't start

Dodgy · 08-04-2024, 04:39 AM

Neco Azzuro GP 125, 3 years old, 2,500 miles.

Developed a fault where engine would die when pulling up at junction or closing throttle whilst running on the centre stand. Checked valve clearances and found that inlet was OK but exhaust valve was too tight. reset exhaust valve to 0.10mm and scooter started well and ran for a minute before cutting out.

Scooter will not restart and lists following error codes from ecu (P0201, P0033, P0230, P0351 and P0444). Pump priming does not occur when trying to start as it usually would, pump can be made to run by jumping 12V direct to pump so it's not a dead pump.

Also no spark at plug.

Error codes can be cleared but come back once an engine start is attempted.

Checked fuses and they are all OK.

P0201 Injector malfunction
P0031 O2 Sensor Low
P0230 Fuel Pump relay coil
P0351 Ign Coil malfunction
P0444 Evap cct low

Any suggestions on what to check next?

Dodgy · 08-12-2024, 06:06 AM

Scooter is now fixed. For those interested the fault was a poor connection in the socket base for the Fuel Pump relay. ECU had detected the fault and initiated a Fuel Circuit lockdown which also tripped the additional fault codes. Poor connection was remedied and scooter now runs.

08-04-2024, 04:39 AM	#1
Dodgy Join Date: Aug 2024 Posts: 2	Neco Azzuro GP125 won't start Neco Azzuro GP 125, 3 years old, 2,500 miles. Developed a fault where engine would die when pulling up at junction or closing throttle whilst running on the centre stand. Checked valve clearances and found that inlet was OK but exhaust valve was too tight. reset exhaust valve to 0.10mm and scooter started well and ran for a minute before cutting out. Scooter will not restart and lists following error codes from ecu (P0201, P0033, P0230, P0351 and P0444). Pump priming does not occur when trying to start as it usually would, pump can be made to run by jumping 12V direct to pump so it's not a dead pump. Also no spark at plug. Error codes can be cleared but come back once an engine start is attempted. Checked fuses and they are all OK. P0201 Injector malfunction P0031 O2 Sensor Low P0230 Fuel Pump relay coil P0351 Ign Coil malfunction P0444 Evap cct low Any suggestions on what to check next?
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08-12-2024, 06:06 AM	#2
Dodgy Join Date: Aug 2024 Posts: 2	Scooter is now fixed. For those interested the fault was a poor connection in the socket base for the Fuel Pump relay. ECU had detected the fault and initiated a Fuel Circuit lockdown which also tripped the additional fault codes. Poor connection was remedied and scooter now runs.
	1