Fuel Leakage Test

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Always carry out the following procedure with the engine stopped.

NOTE:

Perform the following test only when directed.

Complete the "BEFORE REPAIR PROCEDURE ". (See BEFORE REPAIR PROCEDURE .)
Disconnect the negative battery cable.
Remove the fuel injectors together with the fuel distributor connected to fuel hose. (See FUEL INJECTOR REMOVAL/INSTALLATION [AJ] .)
Fasten the fuel injectors firmly to the fuel distributor with wire.

Fig 1: Identifying Fuel Pump Rail
Courtesy of MAZDA MOTORS CORP.
Connect the negative battery cable.
CAUTION:
- Connecting to the wrong check connector terminal may cause a malfunction. Carefully connect only to the specified terminal.
Short the check connector terminal F/P to body GND using a jumper wire.

Fig 2: Identifying Connector Terminal
Courtesy of MAZDA MOTORS CORP.
Turn the ignition switch to the ON position to operate the fuel pump.
Tilt the fuel injectors approx. 60° .

Fig 3: Tilting Fuel Injectors
Courtesy of MAZDA MOTORS CORP.
Verify that fuel leakage from the fuel injector nozzles is within the specification.
- If not as specified, replace the fuel injector.
Fuel leakage Less than 1 drop/2 min
Turn the ignition switch to the LOCK position and remove the jumper wire.
Complete the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE .)