Fuel Line/Quick-Connect Fitting Precautions

The fuel line/quick-connect fittings (A, B, C, D, E, and F) connect the fuel rail (G) to the fuel feed hose (H), the fuel feed hose to the fuel pressure regulator base (I), the fuel pressure regulator base to the fuel feed line (J), the fuel feed line (K) and fuel return line (L) to the fuel tank unit (M), the fuel vapor line (O) to the EVAP canister (P), and the fuel tank vapor recirculation tube (Q) to the fuel fill pipe (R).

When removing or installing the fuel feed hose, the fuel pressure regulator base, the fuel vapor line, the fuel tank unit, the fuel tank, the EVAP canister, or the fuel fill pipe, when disconnecting or connecting the quick-connect fittings, pay attention to the following:

• The fuel feed hoses, fuel line, and quick-connect fittings are not heat-resistant; be careful not to damage them during welding or other heat-generating procedures.
• The fuel feed hoses, fuel line, and quick-connect fittings are not acid-proof; do not touch them with a shop towel that was used for wiping battery electrolyte. Replace them if they came in contact with electrolyte or something similar.
• When connecting or disconnecting the fuel feed hoses, the fuel line, and the quick-connect fittings, be careful not to bend or twist them excessively. Replace them if they are damaged.
  Fig 1: Identifying Fuel Line, Fuel Rail, Hose And Fuel Pressure Regulator Base

  Courtesy of AMERICAN HONDA MOTOR CO., INC.
  Fig 2: Identifying Fuel Feed Line, Return Line, Vapor Line, EVAP Canister And Fuel Tank Vapor Recirculation Tube

  Courtesy of AMERICAN HONDA MOTOR CO., INC.

A disconnected quick-connect fitting can be reconnected, but the retainer on the mating line cannot be reused once it has been removed from the line. Replace the retainer when:

• replacing the fuel rail.
• replacing the fuel line.
• replacing the fuel return line.
• replacing the fuel pump.
• replacing the fuel filter.
• replacing the fuel gauge sending unit.
• replacing the EVAP purge line.
• replacing the EVAP canister.
• replacing the fuel tank.
• replacing the fuel fill pipe.
• it has been removed from the line.
• it is damaged.