9043711

Check operation of OCV.

(1)

Connect GDS to Data Link Connector(DLC).

(2)

IG KEY "ON" & ENG "OFF".

(3)

Perform "Actuation Test" for OCV-EX.

Fig.1) Refer to Figure below (Also, operating sound(Clicking sound) is heard)

(4)

Has a problem been found?

	▶ Go to "Check engine oil" procedure
	▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM/PCM’s connector or was repaired and ECM/PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure.

Check engine oil

(1)

Check engine oil gauge.

(2)

Check contamination of engine oil.

(3)

Has a problem been found?

	▶ Replace engine oil and then go to "Verification of Vehicle Repair" procedure
	▶ Go to "Check OCV Filter" procedure

Check OCV Filter.

(1)

Ignition"OFF".

(2)

Check OCV filter for sticking or contamination.

(3)

Remove the OCV and visually check the spool column of OCV for contamination.

(4)

Has a problem been found?

	▶ Clean or replace as necessary and then go to "Verification of Vehicle Repair" procedure
	▶ Go to "Check CVVT(Continuously Variable Valve Timing) Assembly" procedure

The one of the 2 holes on the cam journal is for advances(upper) and the rest is for retards(lower). Apply masking tape to all oil path holes except the one advance hole("B") indicated by the arrow as shown in the figure.

To release the CVVT lock pin, wrap some tape around the tip of an air pressure adapter and apply low air pressure of approx. 150kPa(1.5kg/㎠, 21 psi) to the exposed camshaft port. Wrap a shop towel or rag around the CVVT because residual oil may leak out of the unit when applying air pressure

With low air pressure applied, turn the CVVT to the ADVANCE direction as indicated in the figure.

note

If too much air leaks when applying the low air pressure, the CVVT lock pin may not release and the CVVT may not turn.

Allow the CVVT assembly to move in the ADVANCE and DELAY directions to ensure there is no binding and that it moves freely.(Movable smoothly in the range about 20˚)

11.

Is CVVT assembly working properly?

▶ Fault is intermittent caused by poor contact in the sensor’s and/or ECM/PCM’s connector or was repaired and ECM/PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure.

▶ Carefully re-do this troubleshooting guide steps.

▶ If no problems were found with the circuits or connectors, replace the OCV-Ex and go to "Verification of Vehicle Repair" procedure.