Fuel Leakage Test

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:

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

Fig 1: Fastening Fuel Injectors To Fuel Distributor With Wire
Courtesy of MAZDA MOTORS CORP.
Connect the negative battery cable.
CAUTION:
- Connecting the wrong DLC terminal may possibly cause a malfunction. Carefully connect the specified terminal only.
Short the DLC terminal F/P to body GND using a jumper wire.

Fig 2: Shorting DLC Terminal F/P To Body GND Using Jumper Wire
Courtesy of MAZDA MOTORS CORP.
Turn the ignition switch to ON position to operate the fuel pump.
Tilt the fuel injectors approx. 60 degrees.

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
1. Less than 1 drop/2 minutes
Turn the ignition switch to LOCK position and remove the jumper wire.
Complete the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE .)