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 )
Disconnect the negative battery cable.
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 WDS or equivalent to the DLC-2.
  
  Fig 1: Identifying DLC-2 Connector
  Courtesy of MAZDA MOTORS CORP.
2. Start the fuel pump using the "FP" simulation function.
Not using WDS or equivalent
1. Remove the fuel pump relay.
  CAUTION:
  - Be careful to short the specified terminal as shorting the wrong terminal of the main fuse block may cause a malfunction.
  Fig 2: Identifying Fuel Pump Relay
  Courtesy of MAZDA MOTORS CORP.
2. Using a jumper wire, short fuel pump relay terminals C and D and connect the negative battery cable to start the fuel pump.
  
  Fig 3: Jumping Fuel Pump Relay Terminals C And D
  Courtesy of MAZDA MOTORS CORP.
Measure the injection volume of each fuel injector.
- If not within the specification, replace the fuel injector.
Standard
1. For California emission regulation applicable model: 260-320 ml {260-320 cc, 15.9-19.5 cu in}/min
2. Except for California emission regulation applicable model, LF-DE: 195-245 ml {195-245 cc, 11.9-14.9 cu in}/min
3. Except for California emission regulation applicable model, L3-VE: 230-290 ml {230-290 cc, 14.1-17.6 cu in}/min
Disconnect the negative battery cable.
Install the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION )
Inspect all related parts by performing "AFTER SERVICE PRECAUTION". (See AFTER SERVICE PRECAUTION )