Technician A says an SFI is more efficient than an MPI injection because fuel is injected only when the intake valve is open, so the fuel can't condense when the intake valve is closed. Technician B says an MPI injection system can shut down the injector for a misfiring cylinder, preventing catalytic converter overheating. Who is correct?

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The Answer of Technician A says an SFI is more efficient than an MPI injection because fuel is injected only when the intake valve is open, so the fuel can't condense when the intake valve is closed. Technician B says an MPI injection system can shut down the injector for a misfiring cylinder, preventing catalytic converter overheating. Who is correct?

Technician a Says an SFI Is More Efficient Than an MPI