Component Inspection

INSPECTION




1. INSPECT VENTILATION VALVE SUB-ASSY
a. Check the ventilation.
1. Install a clean hose to the ventilation valve as illustration.
2. Check that there is ventilation when air is applied from the cylinder head side.

CAUTION: Do not suck the air inside the ventilation valve because it is harmful.

If there is no ventilation, replace the ventilation valve.




3. Check that there no ventilation when air is applied from the intake manifold side.
If there is ventilation, replace the ventilation valve.







2. INSPECT VACUUM SWITCHING VALVE ASSY NO.2
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the resistance is not as specified, replace the vacuum switching valve No. 2.




b. Check the ventilation.
1. Check that there is no ventilation in port F when air is applied from port E.
If there is ventilation, replace the vacuum switching valve No.




2. Apply battery voltage across the terminals.
3. Check that there is ventilation in port F when air is applied from port E.
If there is no ventilation, replace the vacuum switching valve No. 2.










3. INSPECT CHARCOAL CANISTER VACUUM SWITCHING VALVE
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the charcoal canister vacuum switching valve.




b. Check the ventilation.
1. Check that there is no ventilation from port E to port F.

If there is ventilation, replace the charcoal canister vacuum switching valve.




2. Apply battery voltage across the terminals.
3. Check that there is ventilation in port F when air is applied from port G.
If there is no ventilation, replace the charcoal canister vacuum switching valve.




4. INSPECT TRAP W/OUTLET VALVE CANISTER ASSY
a. Check the appearance.
1. Check that there are no cracks or damage on the indicated portion of the trap with outlet valve canister.
If there are any defects, replace the trap with outlet valve canister.




b. Check the ventilation.
1. Remove the 2 bolts and VSV for CCV (canister closed valve).




2. Check that there is ventilation in port B when air is applied from port A.
If there is no ventilation, replace the trap with outlet valve canister.







c. Inspect the VSV for CCV (canister closed valve).
1. Inspect the resistance.
Using an ohmmeter, measure the resistance between the terminals.

If the resistance is not as specified, replace the trap with outlet valve canister.




2. Check the ventilation.
- Check that there is ventilation in ports B and C when air is applied from por A.

If there is no ventilation, replace the trap with outlet valve canister.




- Apply battery voltage across the terminals.
- Check that there is no ventilation in port B when air is applied from port A.

If there is ventilation, replace the trap with outlet valve canister.

- Apply battery voltage across the terminals.
- Check that there is ventilation in port C when air is applied from port A.

If there is no ventilation, replace the trap with outlet valve canister.




- Apply battery voltage across the terminals, then check that the valve closed.
If the valve does not close, replace the trap with outlet valve canister.

3. Install the VSV for CCV (canister closed valve) with the 2 bolts.




5. INSPECT CHARCOAL CANISTER ASSY
a. Check the appearance.
1. Check that there are no cracks or damage on the indicated portions of the charcoal canister.
If there are any defects, replace the charcoal canister.




b. Check the ventilation.
1. Disconnect the charcoal canister hose from the charcoal canister.
2. Remove the charcoal canister outlet hose No. 1 from the charcoal canister.




3. Check that there is ventilation in port B when air of 4.9 kPa (50 gf/sq.cm, 0.71 psi)) is applied to port A with the port C plugged with your finger.
If there is no ventilation, replace the charcoal canister.




4. Check that there is ventilation in ports B and C when air (4.9 kPa (50 gf/sq.cm, 0.71 psi)) is applied to charcoal canister vent hose.
If there is no ventilation, replace the charcoal canister.




6. INSPECT FUEL TANK CAP ASSY
a. Check the appearance.
1. Check that there is no deformation or damage on the fuel tank cap and gasket.
If there are any defects, replace the fuel tank cap.







7. INSPECT AIR-FUEL RATIO SENSOR
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the air-fuel ratio sensor.







8. INSPECT HEATED OXYGEN SENSOR
a. Inspect the resistance.
1. Using an ohmmeter, measure the resistance between the terminals.

If the result is not as specified, replace the heated oxygen sensor.