OIL CONTROL VALVE (OCV) INSPECTION [MZR 2.0, MZR 2.5]

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Coil Resistance Inspection

1.  Disconnect the negative battery cable.

2.  Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].)

3.  Disconnect the OCV connector.

4.  Measure the resistance between terminals A and B using an ohmmeter.

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•  If not as specified, replace the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)

5.  Install in the reverse order of removal.

Spool Valve Operation Inspection

1.  Remove the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)

2.  Verify that the spool valve in the OCV is in the maximum valve timing retard position as indicated in the figure.

•  If not as specified, replace the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)

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3.  Verify that the battery is fully charged. (See BATTERY INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].)

•  If not as specified, recharge the battery. (See BATTERY RECHARGING [MZR 1.8, MZR 2.0, MZR 2.5].)

Note

•  When applying battery positive voltage between the OCV terminals, the connection can be either of the following:

―  Positive battery cable to terminal A, negative battery cable to terminal B

―  Positive battery cable to terminal B, negative battery cable to terminal A

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4.  Apply battery positive voltage between the OCV terminals and verify that the spool valve operates and moves to the maximum valve timing advance position.

•  If not as specified, replace the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)

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5.  Stop applying battery positive voltage and verify that the spool valve returns to the maximum valve timing retard position.

•  If not as specified, replace the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)

6.  Install the OCV. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].)