Why might the EFI fuse on a 1986 MR2 burn out?

The EFI fuse on a 1986 MR2 may burn out due to several reasons, including a short circuit in the electrical system, which could be caused by damaged wiring or faulty components. Overloading the circuit with additional aftermarket accessories or modifications can also lead to excessive current draw, causing the fuse to fail. Additionally, issues with the fuel injection system, such as failed injectors or a malfunctioning ECU, may contribute to increased electrical demand, resulting in a blown fuse. Regular inspection of the wiring and components can help prevent this issue.