Mazda MX-5 Miata / Grand Touring. Manual — part 125

Fig. 46: Checking Connector Terminal F/P To Ground Using Jumper Wire
Courtesy of MAZDA MOTORS CORP.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Fuel System - MX-5 Miata

Fig. 47: Identifying F/P Connector Terminal
Courtesy of MAZDA MOTORS CORP.

2. Turn the ignition switch to the ON position to operate the fuel pump.

8. Tilt the fuel injector at an angle of 24° to inspect for leakage.



If not within the specification, replace the fuel injector. (See FUEL INJECTOR
REMOVAL/INSTALLATION [LF] .

NOTE:



Prepare a container to collect the gasoline.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Fuel System - MX-5 Miata

Fig. 48: Tilting Fuel Injector
Courtesy of MAZDA MOTORS CORP.

Fuel injector leakage amount

Less than 1 drop/2 min

9. Stop the fuel pump using the following procedure:

Using M-MDS

1. Stop the fuel pump using the "FP" simulation function.

Not using M-MDS

1. Turn the ignition switch to off to stop the fuel pump.

10. Remove the battery cover.

11. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)

12. Remove the wire or equivalent securing the fuel injector.

13. Install the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [LF] .)

14. Complete the "AFTER SERVICE PRECAUTION". (See AFTER SERVICE PRECAUTION [LF] .)

INJECTION VOLUME INSPECTION

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Fuel System - MX-5 Miata

1. Follow "BEFORE SERVICE PRECAUTION" before performing any work operations to prevent fuel

from spilling from the fuel system. (See BEFORE SERVICE PRECAUTION [LF] .)

2. Remove the battery cover.

3. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)

4. Remove the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [LF] .)

5. Connect the fuel injector to the fuel injector tester.

6. Start the fuel pump using the following procedure:

Using M-MDS

1. Connect the negative battery cable.

2. Connect the M-MDS or equivalent to the DLC-2.

Fig. 49: Locating DLC-2 Connector
Courtesy of MAZDA MOTORS CORP.

3. Start the fuel pump using the "FP" simulation function.

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.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Fuel System - MX-5 Miata