Maxima SE V6-3.0L (VQ30DE) (1998)
EVAP canister purge control solenoid valve
Check air passage continuity.
If NG, replace solenoid valve.
One-way valve
Check one-way valve air passage continuity.
If NG, replace one-way valve.
EVAP control system pressure sensor
1. Remove EVAP control system pressure sensor from bracket with its harness connector connected.
2. Remove hose from EVAP control system pressure sensor.
3. Apply vacuum and pressure to EVAP control system pressure sensor with pump as shown in figure.
4. Check output voltage between terminal (62) and (25) (ECM ground).
CAUTION:
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Do not apply below -20 kPa (-150 mmHg, -5.91 inHg) or over 20 kPa (150 mmHg, 5.91 inHg) of pressure.
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Always calibrate the vacuum pump gauge when using it.
5. If NG, replace EVAP control system pressure sensor.
DTC 0312 EVAP Canister Purge Control Valve/Solenoid Valve