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Home >> Honda >> 1983 >> Prelude Automatic >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Diagnosis & Overhaul - AK >> Trouble Shooting >> Upshift Too Early >> "D1"-"D2" & "D2"-"D3"

"D1"-"D2" & "D2"-"D3"

Faulty governor valve. Throttle cable at carburetor out of adjustment. Defective throttle valve. Defective modulator valve.