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Fuel Pressure: Civic

  1. Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Disconnect quick-connect fitting and connect Fuel Pressure Gauge (07406-004000A) and Fuel Pressure Gauge Adapter (07ZAJ-S5A0100). Reconnect negative battery terminal. Start engine and allow to idle. If engine starts, go to next step. If engine does not start, check operation of fuel pump. See FUEL PUMP OPERATION .
  2. Read fuel pressure. See FUEL PRESSURE  table. If fuel pressure is as specified, test is complete. If fuel pressure is not as specified, replace fuel pressure regulator and fuel filter. Recheck fuel pressure.
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