Fuel System - MIL ON/DTC's P0451/P0452/P0453/P0454

06-051

September 12, 2006

Applies To:
2005 CR-V - ALL
2006 CR-V 4WD - From VIN 5HSRD7...5U400001 thru SHSRD7...6U432399
2006 CR-V 2WD - From VIN 5HSRD6...5U400001 thru SHSRD6...6U407301

MIL Comes On With DTC P0451, P0452, P0453, or P1454

SYMPTOM

The MIL comes on with one or more of these evaporative DTCs stored:

^ P0451 (FTP sensor circuit range/performance problem)

^ P0452 (FTP sensor circuit low voltage)

^ P0453 (FTP sensor circuit high voltage)

^ P1454 (FTP sensor circuit range/performance problem)

PROBABLE CAUSE

The fuel tank pressure sensor has an internal malfunction.

CORRECTIVE ACTION

Replace the fuel tank pressure sensor.





PARTS INFORMATION

WARRANTY CLAIM INFORMATION

In warranty: The normal warranty applies

Failed Part: P/N 37940-SDA-A01
H/C 7136385

Defect Code: 03217

Symptom Code: 03203

Template ID: 06-051A

Skill Level: Repair Technician

Out of warranty:
Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Parts and Service Manager or your Zone Office. You must request consideration, and get a decision, before starting work.

DIAGNOSIS

1. Connect the HDS to the DLC (data link connector).

2. Remove the fuel fill cap.

3. Turn the ignition switch to the ON (II) position.

4. Select the PGM-FI data list, and observe the fuel tank pressure sensor voltage. Record the current BARO sensor reading and the current FTP sensor reading.

^ If the FTP sensor voltage is within 0.05 V of the BARO voltage, run the evaporative function test, and then follow normal troubleshooting procedures. This service bulletin does not apply.

^ If the FTP sensor voltage is not within 0.05 V of the BARO voltage, go to REPAIR PROCEDURE.

REPAIR PROCEDURE

1. Remove the EVAP canister.

^ Refer to page 11-330 of the 2005-06 CR-V Service Manual, or

^ Online, enter keyword EVAP, then select EVAP Canister Replacement from the list.

2. Inspect the fuel tank pressure sensor vent tube for blockage or poor connection. Then blow shop air through the vent tube to clear any contamination.

3. Remove the retaining clip.

4. Remove the FTP sensor

5. Install the FTP sensor with a new 0-ring

6. Install the remaining parts in the reverse order of removal.





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