The guy i bought it from didn't know what they were for either. They are mounted just above the boost gauge which doesn't read anything. Neither do the 3 gauges next to the door jam. Do the switches maybe turn on and off the turbo somehow? Cause driving the car, it doesn't feel boosted. Feels like driving a normal car.
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Bought a Honda Civic with a turbo already installed. What are the 3 switches on the dash for?