Injector Replacement
- Relieve fuel pressure (see FUEL PRESSURE RELIEVING ).
- Remove the air cleaner (see AIR CLEANER REPLACEMENT ).
- Disconnect the connectors from the injectors (A), the manifold absolute pressure (MAP) sensor (B), the evaporative emission (EVAP) canister purge valve (C), and the throttle position (TP) sensor (D).
- Disconnect the quick-connect fittings (E).
- Disconnect the hoses from the fuel rail (F).
- Remove the fuel rail mounting nuts (G) from the fuel rail.
- Remove the injector clip (H) from the injector.
- Remove the injector from the fuel rail.
- Coat the new O-rings (A) with clean engine oil, and insert the injectors (B) into the fuel rail (C).
- Install the injector clip (D).
- Coat the injector O-ring (E) with clean engine oil.
- To prevent damage to the O-rings, install the injectors in the fuel rail first, then install them in the injector base.
- Install the fuel rail mounting nuts.
- Connect the connectors on the injectors, the MAP sensor, the EVAP canister purge valve, and the TP sensor.
- Connect the quick-connect fittings.
- Install the air cleaner (see AIR CLEANER REPLACEMENT ).
- Turn the ignition switch ON (II), but do not operate the starter. After the fuel pump runs for approximately 2 seconds, the fuel pressure in the fuel line rises. Repeat this 2 or 3 times, then check for fuel leakage.