See Figures 1, 2, 3 and 4REMOVAL & INSTALLATIONAll Engines
- Remove the gas filler cap to relieve any excess pressure in the system.
- Obtain a pair of suitable clamps to pinch shut the fuel lines to the pump.
- Disconnect the negative battery cable.
- Locate the fuel pump. On Civic sedan and hatchback models (1982 only), you will first have to remove the rear seat by removing the bolt at the rear center of the bottom cushion and pivoting the seat forward from the rear. The pump and filter are located on the driver's side of the rear seat floor section beneath an access plate retained by four Phillips head screws.
On station wagon and 1983 sedan & hatchback models and the Accord and Prelude, you will probably have to raise the rear of the car to obtain access to the pump. On Accord and Prelude models, remove the left rear wheel. In all cases, make sure, if you are crawling under the car, that the car is securely supported.
- Pinch the inlet and outlet fuel lines shut. Loosen the hose clamps. On station wagon and Accord models, remove the filter mounting clip on the left hand side of the bracket.
- Disconnect the positive lead wire and ground wire from the pump at their quick disconnect.
- Remove the two fuel pump retaining bolts, taking care not to lose the two spacers and bolt collars.
- Remove the fuel lines and fuel pump.
- Reverse the above procedure to install. The pump cannot be disassembled and must be replaced if defective. Operating fuel pump pressure is 2-3 psi.
- Relieve the fuel pressure from the system as previously outline in this section.
- Disconnect the fuel line at the fuel filter and attach the pressure gauge to it.
- Remove the fuel cut off relay from the fuse box and connect a jumper wire in its place. Turn the ignition switch to ON until the pressure stabilizes and then turn it OFF . The pressure should be 2.6-3.3 psi.
If the fuel pressure is not as specified, first check the fuel pump. If the fuel pump is good, check the following:
- If the pressure is higher than specified, inspect for a pinched or clogged fuel return hose or piping.
- If the pressure is lower than specified, inspect for a clogged fuel filter, pinched or clogged fuel hose from the fuel tank to the fuel pump or leakage in the fuel line.