Leakage Inspection

WARNING:

Fuel line spills and leakage from the pressurized fuel system are dangerous. Fuel can ignite and cause serious injury or death and damage. To prevent this, complete the following inspection with the engine stopped.

Follow "BEFORE SERVICE PRECAUTION" before performing any work operations to prevent fuel from spilling from the fuel system. (See BEFORE SERVICE PRECAUTION .)
Disconnect the negative battery cable.
Remove the fuel injector and fuel distributor as a single unit. (See FUEL INJECTOR REMOVAL/INSTALLATION .)
Fix the fuel injector to the fuel distributor with a wire or the equivalent.
Connect the fuel hose.
Connect the negative battery cable.
Ground the following PCM terminals using a jumper wire.
- With immobilizer system: 1AR
- Without immobilizer system: 1AQ
  
  Fig 1: Fixing Fuel Injector To Fuel Distributor With Wire
  Courtesy of MAZDA MOTORS CORP.
Turn the ignition switch to the ON position to start the fuel pump.

Fig 2: Identifying PCM Wiring Harness Side Connector Terminals
Courtesy of MAZDA MOTORS CORP.
Tilt the fuel injector at an angle of 60° to inspect for leakage.
- If not within the specification, replace the fuel injector.
1. Standard Less than 1 drop/2 min
  
  Fig 3: Tilting Fuel Injector At Angle For Inspection
  Courtesy of MAZDA MOTORS CORP.
Turn the ignition switch to the LOCK position to stop the fuel pump and disconnect the jumper wire.
Remove the wire or equivalent securing the fuel injector.
Install the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION .)
Inspect all related parts by performing "AFTER SERVICE PRECAUTION". (See AFTER SERVICE PRECAUTION .)