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Home >> Honda >> 1990 >> Civic Base, 2D Hatchback >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Basic Testing >> Fuel System >> Fuel Pressure >> Relieving Fuel Pressure (Fuel Injection)
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Relieving Fuel Pressure (Fuel Injection)

Remove negative battery cable. Loosen fuel tank filler cap. Place clean shop rag around fuel filter. Slowly loosen 6-mm bolt on top of fuel filter (one complete turn) to relieve system pressure. Always replace washer under 6-mm bolt after loosening.

Fig 1: Carbureted Fuel Pump Cut-Off Relay Terminal
G117887Courtesy of AMERICAN HONDA MOTOR CO., INC.