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Fuel pump issue


LD711
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Hi Guys

 

I picked my bike up on Wednesday after having a 12000 mile service carried out at a Yamaha service centre.
 

Thursday afternoon I switched the ignition on and found the engine fault light on and the fuel pump constantly on.

 

Connected OBDII and got fault code P0657
Actuator Supply Voltage "A" Circuit/Open

 

Been back to Yamaha today, they have had the bike for 5 hours and can’t find the  cause of the fault, they now say they need more time to investigate 

 

Has anyone else had a similar fault or got any idea what it could be ? 

 
any help would be appreciated 

 

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39 minutes ago, LD711 said:

Hi Guys

 

I picked my bike up on Wednesday after having a 12000 mile service carried out at a Yamaha service centre.
 

Thursday afternoon I switched the ignition on and found the engine fault light on and the fuel pump constantly on.

 

Connected OBDII and got fault code P0657
Actuator Supply Voltage "A" Circuit/Open

 

Been back to Yamaha today, they have had the bike for 5 hours and can’t find the  cause of the fault, they now say they need more time to investigate 

 

Has anyone else had a similar fault or got any idea what it could be ? 

 
any help would be appreciated 

 

Presumably the dealer removed the tank for the service so first thought is wiring under the tank.

 

Based on the fact the dealer couldn't diagnose a simple open circuit in 5 hours means they were probably the one that caused the fault.

 

Take it to a competent mechanic.

 

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I haven't the slightest idea what to suggest.  Please let us know the outcome so we can learn from this.  

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14 hours ago, Landshark said:

I haven't the slightest idea what to suggest.  Please let us know the outcome so we can learn from this.  

Will do

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On 5/14/2022 at 11:13 PM, Hogan said:

Presumably the dealer removed the tank for the service so first thought is wiring under the tank.

 

Based on the fact the dealer couldn't diagnose a simple open circuit in 5 hours means they were probably the one that caused the fault.

 

Take it to a competent mechanic.

 

Yes fuel tank removed during service , fault light came on about 20miles from garage

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