[System Inspection]
- Disconnect the vacuum hose from the throttle body, and connect a vacuum pump to the vacuum hose.
- Check the following points when the engine is cold [engine coolant temperature 60°C(140°F) or below] and when it is warm [engine coolant temperature 80°C(176°F) or higher].
When engine is cold
| Engine operating condition | Applied vacuum | Result |
|---|---|---|
| Idling | 50 kPa(7.3 psi) | Vacuum is held |
| 3,000 rpm |
ENGINE OPERATING CONDITION CHART
When engine is warm
| Engine operating condition | Applied vacuum | Result |
|---|---|---|
| Idling | 50 kPa(7.3 psi) | Vacuum is held |
| Within 3 minutes after engine start at 3,000 rpm | Try to apply vacuum | Vacuum is released |
| After 3 minutes have passed after engine start at 3,000 rpm | 50 kPa(7.3 psi) | Vacuum will be held momentarily, after which, it will be released |
ENGINE OPERATING CONDITION CHART
[PCSV Inspection]
Note. When disconnecting the vacuum hose, make an identification mark on it so that it can be reconnected to its original position.
- Disconnect the vacuum hose from the solenoid valve.
- Detach the harness connector.
- Connect a vacuum pump to the nipple which is connected to intake manifold.
- Apply vacuum and check when voltage is applied to the PCSV and when the voltage is discontinued. VOLTAGE SPECIFICATION Battery voltage Normal condition When applied Vacuum is released When discontinued Vacuum is maintained
- Measure the resistance between the terminals of the solenoid valve.
PCSV coil resistance(ohms)
19.0 ~ 22.0ohms at 20°C (68°F) [2.4 DOHC]
14.0 ~ 18.0ohms at 20°C (68°F) [2.7 V6]
Scheme 12
- Remove the fuel tank (Refer to «FUEL DELIVERY SYSTEM»(ref-357442) ).
- Disconnect the canister close valve connector (A).
- Disconnect the vacuum hoses (B) and the vacuum tube quick-connector (C) from the canister.
- Remove the canister after unscrewing the mounting screws (D).
Inspection
- Look for loose connections, sharp bends or damage to the fuel vapor lines.
- Look for distortion, cranks or fuel damage.
- After removing the canister, inspect for cracks, damage or saturated canister.
