FUEL INJECTOR INSPECTION [L8, LF, L5]

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Resistance Inspection

1.  Switch the ignition to off.

2.  Disconnect the negative battery cable.

3.  Disconnect the fuel injector connector.

4.  Inspect the resistance between fuel injector terminals A and B using a tester.

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•  If not within the specification, replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [L8, LF, L5].)
Fuel injector resistance
11.4—12.6 ohms [20 °C {68 °F}]


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.

1.  Complete the “BEFORE SERVICE PRECAUTION”. (See BEFORE SERVICE PRECAUTION [L8, LF, L5].)

2.  Disconnect the negative battery cable.

3.  Remove the fuel injector and fuel distributor as a single unit. (See FUEL INJECTOR REMOVAL/INSTALLATION [L8, LF, L5].)

4.  Fix the fuel injector to the fuel distributor with a wire or the equivalent.

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5.  Connect the fuel hose.

6.  Connect the negative battery cable.

7.  Start the fuel pump using the following procedure.

Using M-MDS
1.  Connect the negative battery cable.
2.  Connect the M-MDS to the DLC-2.
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3.  Using the simulation function “FP”, start the fuel pump. (See ON-BOARD DIAGNOSTIC TEST [L8, LF, L5].)
Without using M-MDS
1.  Remove the fuel pump relay.
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Caution
•  Short the specified terminals because shorting the wrong terminal of the relay and fuse block may cause malfunctions.
2.  Using a jumper wire, short fuel pump relay terminals C and D in the relay and fuse block.
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3.  Connect the negative battery cable and operate the fuel pump.

8.  Tilt the fuel injector at an angle of 42° to inspect for leakage.

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•  If not within the specification, replace the fuel injector.
Fuel injector leakage
1 drop or less/2 min

9.  Stop the fuel pump using the following procedure.

Using M-MDS
1.  Using the simulation function “FP”, stop the fuel pump.
Without using M-MDS
1.  Disconnect the negative battery cable to stop the fuel pump.

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

11.  Install the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [L8, LF, L5].)

12.  Complete the “AFTER SERVICE PRECAUTION”. (See AFTER SERVICE PRECAUTION [L8, LF, L5].)


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.

1.  Complete the “BEFORE SERVICE PRECAUTION”. (See BEFORE SERVICE PRECAUTION [L8, LF, L5].)

2.  Disconnect the negative battery cable.

3.  Remove the fuel injector and fuel distributor as a single unit. (See FUEL INJECTOR REMOVAL/INSTALLATION [L8, LF, L5].)

4.  Fix the fuel injector to the fuel distributor with a wire or the equivalent.

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5.  Connect the corresponding fuel injector connector.

6.  Connect the negative battery cable.

7.  Start the fuel pump using the following procedure.

Using M-MDS
1.  Connect the negative battery cable.
2.  Connect the M-MDS to the DLC-2.
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3.  Using the simulation function “FP”, start the fuel pump. (See ON-BOARD DIAGNOSTIC TEST [L8, LF, L5].)
Without using M-MDS
1.  Remove the fuel pump relay.
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Caution
•  Short the specified terminals because shorting the wrong terminal of the relay and fuse block may cause malfunctions.
2.  Using a jumper wire, short fuel pump relay terminals C and D in the relay and fuse block.
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3.  Connect the negative battery cable and operate the fuel pump.

8.  Ground the following PCM terminals using a jumper wire and measure the injection volume of each fuel injector.

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•  If not within the specification, replace the fuel injector.
Injection volume
L8, LF: 284—302 ml {284—302 cc, 17.4—18.4 in3}/min
L5: 325—346 ml {325—346 cc, 19.9—21.1 in3}/min

Fuel injector No.

PCM terminal
1
2BB
2
2BC
3
2BD
4
2AZ

9.  Stop the fuel pump using the following procedure.

Using M-MDS
1.  Using the simulation function “FP”, stop the fuel pump.
Without using M-MDS
1.  Disconnect the negative battery cable to stop the fuel pump.

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

11.  Install the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION [L8, LF, L5].)

12.  Complete the “AFTER SERVICE PRECAUTION”. (See AFTER SERVICE PRECAUTION [L8, LF, L5].)


Atomization Inspection

1.  Inspect the atomization status.

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•  If not normal, replace the fuel injector.