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Home >> Mazda >> 2006 >> MPV ES >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System >> Fuel Injector Inspection >> Fuel Leakage Test

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:
  • Perform the following test only when directed.
  1. Complete the "BEFORE REPAIR PROCEDURE". (See BEFORE REPAIR PROCEDURE .)
  2. Disconnect the negative battery cable.
  3. Remove the fuel injectors together with the fuel distributor connected to fuel hose. (See FUEL INJECTOR REMOVAL/INSTALLATION .)
  4. Fig 1: Removing Fuel Injectors With Fuel Distributor
    G04328182
  5. Fasten the fuel injectors firmly to the fuel distributor with wire.
  6. Connect the negative battery cable.
    CAUTION:
    • Connecting the wrong DLC terminal may possibly cause a malfunction. Carefully connect the specified terminal only.
  7. 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
    G04328183
  8. Turn the ignition switch to ON position to operate the fuel pump.
  9. Tilt the fuel injectors approx. 60 degrees. 
  10. Fig 3: Identifying Fuel Injector Angle
    G04328184
  11. 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 minutes 

  12. Turn the ignition switch to LOCK position and remove the jumper wire.
  13. Complete the "After Repair Procedure". (See AFTER REPAIR PROCEDURE .)