How to Solve the Issue of Fuel Pump Not Making Noise During EFI Motorcycle Self-Check?
2 Answers
First, open the vehicle's radiator cap, then wipe the engine oil, and subsequently inspect the current vehicle's radiator to check if it is damaged. Replacing the radiator will resolve the issue.
As a motorcycle enthusiast who frequently deals with fuel-injected models, when the fuel pump doesn't make a sound during self-check, it's essential to start with the basics. First, check if the fuse is blown—locate the fuel pump-labeled fuse in the fuse box and try replacing it with one of the same specification. Next, inspect the relay; swap it with a known-working relay to see if there's any response. If the fuel pump connector is loose or corroded, clean the plug to ensure a secure connection. If the issue persists, test the fuel pump's power supply wires—use a multimeter to check if the voltage is normal. Fuel injection systems rely on stable current, and once the fuel pump fails, the engine may stall while riding, which is highly dangerous. For routine maintenance, it's advisable to perform simple circuit protection checks monthly to prevent dust buildup. If all steps prove ineffective, replace the fuel pump directly or seek professional diagnostics for the ECU at a specialized shop—avoid delays to prevent greater losses.
