Disconnect the vapor hose from the throttle body and connect a vacuum pump to the nipple on the throttle body.
Check the following points with applying vacuum using the vacuum pump.
· At Cold Engine [Engine Coolant Temperature < 60℃(140℉)]
Engine Operating Condition | Applied Vacuum | Result |
Idle | 0.5kgf/cm² (50kPa,7.3psi) | Vacuum is held |
3,000rpm |
· At Warmed Engine [Engine Coolant Temperature > 80℃(176℉)]
Engine Operating Condition | Applied Vacuum | Result |
Idle | 0.5kgf/cm² (50kPa,7.3psi) | Vacuum is held |
Within 3 minutes after engine start at 3,000 rpm | Try to applyvacuum | Vacuum is released |
In 3 minutes after engine start at 3,000 rpm | 0.5kgf/cm² (50kPa,7.3psi) | Vacuum will be held momentarily, after which, it will be released |
Turn ignition switch OFF and disconnect the negative (-) battery cable.
Disconnect the PCSV connector.
Disconnect the vapor hose which is connected with the intake manifold from the PCSV.
After connecting a vacuum pump to the nipple, apply vacuum.
With the PCSV control line grounded, check valve operation when applying battery voltage to the PCSV or not.
Battery Voltage | Valve | Vacuum |
Connected | Open | Released |
Disconnected | Close | Maintained |
Measure the coil resistance of the PCSV.
Specification: 16Ω [20℃(68℉)]
