Injection Volume 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 .)
Remove the battery cover.
Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)
Remove the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION .)
Connect the fuel injector to the fuel injector tester.
Start the fuel pump using the following procedure:
Using WDS or equivalent
1. Connect the negative battery cable.
2. Connect the WDS or equivalent to the DLC-2.
3. Start the fuel pump using the "FP" simulation function.
Fig 1: Locating DLC-2 Connector
Courtesy of MAZDA MOTORS CORP.

Not using WDS or equivalent
1. Short the check connector terminal F/P to ground using a jumper wire.
  
  Fig 2: Checking Connector Terminal F/P To Ground Using Jumper Wire
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 3: Identifying F/P Connector Terminal
  Courtesy of MAZDA MOTORS CORP.
2. Turn the ignition switch to the ON position to operate the fuel pump.
Measure the injection volume of each fuel injector.
- If not within the specification, replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION .)
Fuel injection volume

204-216 ml {204-216 cc, 12.5-13.1 cu in}/min
Turn the ignition switch to off to stop the fuel pump.
Install the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION .)
Complete the "AFTER SERVICE PRECAUTION". (See AFTER SERVICE PRECAUTION .)