Component Location
General Description

The purge solenoid is a pneumatic device that meters the air and fuel (purge) vapor flow to the purge port. In a sense, the purge solenoid is comparable to a fuel injector, because the metered purge flow follows the same slope and offset characteristics. However, the purge solenoid normally runs with a duty cycle at a fixed frequency because the opening response is significantly slower than a fuel injector. It would not practical to run the solenoid synchronously with engine events except perhaps at very low RPM. The normal frequencies for the purge solenoid are between 8 and 20 Hz.

DTC Description

If there is Short to power in PCSV circuit, PCM sets DTC P0459.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Circuit continuity check, high

● Poor connection

● Short to power in control circuit

● PCSV

Enable Conditions

Threshold Value

● Short circuit to battery

Diagnostic Time

● Continuous

MIL ON Condition

● 2 driving cycle

Specification

Item

Specification

PCSV Coil Resistance

16Ω at 20 ℃ (68℉)

Schematic Diagram
note
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Signal Waveform
Яндекс.Метрика