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2008 - MX-5 - Engine

FUEL INJECTOR INSPECTION [LF]

NOTE:

Resistance Inspection

1. Remove the battery cover.
2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF].)
3. Disconnect the fuel injector connector.
4. Inspect the resistance between fuel injector terminals A and B using a tester.

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [LF].)
2. Inspect the following wiring harnesses for open or short circuit (continuity check).

Leakage Inspection

WARNING:

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 and fuel distributor as a single unit. (See FUEL INJECTOR REMOVAL/INSTALLATION [LF].)
5. Fix the fuel injector to the fuel distributor with a wire or the equivalent.

6. Connect the fuel hose.
7. Start the fuel pump using the following procedure:
8. Tilt the fuel injector at an angle of 24° to inspect for leakage.

9. Stop the fuel pump using the following procedure:
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

WARNING:

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:
7. Measure the injection volume of each fuel injector.
  1. If not within the specification, replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [LF].)

8. Turn the ignition switch to off to stop the fuel pump.
9. Install the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [LF].)
10. Complete the “AFTER SERVICE PRECAUTION”. (See AFTER SERVICE PRECAUTION [LF].)

Atomization Inspection

1. Inspect the atomization status.



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