Nissan Maxima Service and Repair Manual: P0453 evap control system pressure sensor

Description

Nissan Maxima. Description

The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases.

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: Always perform test at a temperature of 5C (41F) or more.

2.PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON.
  4. Turn ignition switch OFF and wait at least 10 seconds.
  5. Turn ignition switch ON.
  6. Select "DATA MONITOR" mode with CONSULT.
  7. Check that "FUEL T/TMP SE" is more than 0C (32F).
  8. Start engine and wait at least 20 seconds.
  9. Check 1st trip DTC.

With GST

Nissan Maxima. PERFORM DTC CONFIRMATION PROCEDURE

  1. Start engine and warm it up to normal operating temperature.
  2. Set voltmeter probes to ECM harness connector terminals.
  3. Check that the voltage is less than 4.2 V.
  4. Turn ignition switch OFF and wait at least 10 seconds.
  5. Turn ignition switch ON.
  6. Turn ignition switch OFF and wait at least 10 seconds.
  7. Start engine and wait at least 20 seconds.
  8. Check 1st trip DTC.

Nissan Maxima. PERFORM DTC CONFIRMATION PROCEDURE

Diagnosis Procedure

1.CHECK GROUND CONNECTION

  1. Turn ignition switch OFF.
  2. Check ground connection E9.

2.CHECK CONNECTOR

  1. Disconnect EVAP control system pressure sensor harness connector.
  2. Check that water is not inside connectors.

3.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

Nissan Maxima. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

  1. Turn ignition switch ON.
  2. Check the voltage between EVAP control system pressure sensor harness connector and ground.

Nissan Maxima. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

4.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-II

  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

Nissan Maxima. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-II

5.DETECT MALFUNCTIONING PART

Check the following.

  • Harness connectors B10, E29
  • Harness for open or short between EVAP control system pressure sensor and ECM

6.CHECK SENSOR POWER SUPPLY CIRCUIT

Check harness for short to power and short to ground, between the following terminals.

Nissan Maxima. CHECK SENSOR POWER SUPPLY CIRCUIT

7.CHECK COMPONENTS

Check the following.

  • Crankshaft position sensor (POS) (Refer to EC-299, "Component Inspection".)
  • Refrigerant pressure sensor

8.CHECK APP SENSOR

9.REPLACE ACCELERATOR PEDAL ASSEMBLY

  1. Replace accelerator pedal assembly

10.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

  1. Turn ignition switch OFF
  2. Disconnect ECM harness connector.
  3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.
  4. Also check harness for short to ground and short to power.

Nissan Maxima. .CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

11.DETECT MALFUNCTIONING PART

Check the following.

  • Harness connectors B10, E29
  • Harness for open or short between EVAP control system pressure sensor and ECM

12.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

  1. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.
  2. Also check harness for short to ground and short to power.

Nissan Maxima. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

13.DETECT MALFUNCTIONING PART

Check the following.

  • Harness connectors B10, E29
  • Harness for open or short between EVAP control system pressure sensor and ECM

14.CHECK RUBBER TUBE

  1. Disconnect rubber tube connected to EVAP canister vent control valve.
  2. Check the rubber tube for clogging.

15.CHECK EVAP CANISTER VENT CONTROL VALVE

16.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

17.CHECK DRAIN FILTER

18.CHECK IF EVAP CANISTER IS SATURATED WITH WATER

Nissan Maxima. CHECK IF EVAP CANISTER IS SATURATED WITH WATER

  1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached. Refer to FL-14, "Removal and Installation (EVAP Canister)".
  2. Check if water will drain from the EVAP canister

19.CHECK EVAP CANISTER

Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached.

The weight should be less than 2.1 kg (4.6 lb).

20.DETECT MALFUNCTIONING PART

Check the following.

  • EVAP canister for damage
  • EVAP hose between EVAP canister and drain filter for clogging or poor connection

21.CHECK INTERMITTENT INCIDENT

Component Inspection

EVAP CONTROL SYSTEM PRESSURE SENSOR

1.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Nissan Maxima. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

  1. Turn ignition switch OFF.
  2. Remove EVAP control system pressure sensor with its harness connector. Refer to FL-17, "Removal and Installation".

    Always replace O-ring with a new one.

  3. Install a vacuum pump to EVAP control system pressure sensor.
  4. Turn ignition switch ON and check output voltage between ECM terminals under the following conditions.

Nissan Maxima. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

CAUTION:

  •  Always calibrate the vacuum pump gauge when using it.
  •  Never apply below -93.3 kPa (-0.952 kg/cm2, -13.53 psi) or pressure over 101.3 kPa (1.033 kg/cm2, 14.69 psi).

DRAIN FILTER

Nissan Maxima. DRAIN FILTER

  1. Check visually for insect nests in the drain filter air inlet.
  2. Check visually for cracks or flaws in the appearance.
  3. Check visually for cracks or flaws in the hose.
  4. Blow air into port A and check that it flows freely out of port B.
  5. Block port B.

    6. Blow air into port A and check that there is no leakage.

    7. If NG, replace drain filter.

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