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What Causes the Malfunction Light to Stay On in an EFI Motorcycle?

1 Answers

LincolnFitz

07/29/25 4:43pm

When the malfunction light stays on in an EFI motorcycle, it indicates an issue with the electronic control system, often related to the electrical circuit. You can ride the motorcycle to a repair shop to have it checked. The fault code should be retrieved, and based on this code, the cause can be identified. If there is a fault, it should be repaired accordingly; if not, the light can simply be turned off. Common warning lights in EFI motorcycles and their meanings: Low Coolant Level Warning Light: Indicates that the coolant level is too low and needs to be refilled. TCS Control System Warning Light: Indicates a fault in the traction control system. Transmission Overheat Warning Light: Indicates that the transmission temperature is too high and needs cooling. Drivetrain Warning Light: Indicates a fault in the drivetrain. Types of EFI Motorcycles: Closed-Loop System: The functionality and operation of closed-loop EFI motorcycles are essentially the same as those in cars. Closed-loop EFI motorcycles can adjust the fuel injection amount based on the oxygen content in the exhaust and can also change the intake pressure according to external atmospheric pressure changes. Most domestically produced EFI motorcycles on the market are open-loop systems. Open-Loop System: Open-loop EFI motorcycles have largely been phased out due to their inability to meet high environmental standards.

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