Fuel System/Engine Controls - MIL ON/DTC P0133 Set

00-017

December 17, 2002

Applies To:
1998-02 Accord DX and L4 EX/LX LEV - ALL

MIL Comes On With DTC P0133
(Supersedes 00-017, dated September 11, 2001)

Updated information is shown by asterisks and black bars.

SYMPTOM

The MIL comes on with DTC P0133 (primary heated oxygen sensor slow response).

PROBABLE CAUSE

*Some brands of fuel and/or fuel additive packages may create deposits at the fuel injector tips. This build-up may cause slight air/fuel deviations between each cylinder. Build-up of these deposits, when coupled with very specific driving conditions, may cause the MIL to come on and the PCM to store DTC P0133.*

CORRECTIVE ACTION

Replace the primary heated oxygen sensor (HO2S) and the fuel injectors.

For 1998-2000 models only: Compare the vehicle's ECM/PCM part number to PARTS INFORMATION. If the numbers do not match, replace the ECM/PCM.





PARTS INFORMATION

TOOL INFORMATION

02 Sensor Wrench: T/N SNAP-ON YA5575 or SP Tools 93750 or equivalent (commercially available).

WARRANTY CLAIM INFORMATION





In warranty:
The normal warranty applies.

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.

REPAIR PROCEDURE

1. Confirm the DTC with the PGM Tester.

2. Replace the fuel injectors (see page 11-97 in the 1998-2002 Accord Service Manual).

3. Replace the primary H02S (see page 11-99 in the service manual).

*^ For 2001-02 models, the repair procedure is complete. Return the vehicle to the customer.

^ For 1995-2000 models, go to step 4.*

4. Find the ECM/PCM part number, and compare it to the part numbers in PARTS INFORMATION.

^ If the ECM/PCM part number is the same, return the vehicle to the customer.

^ If the ECM/PCM part number is different, go to step 5.

5. For 2000 model only: Download the immobilizer codes from the ECM/PCM with the PGM Tester. Refer to "Rewriting a New ECM/PCM" in Service Bulletin 00-049, Immobilizer System (Type 2), found under Body Electrical.





6. Remove the ECM/PCM.

7. Replace the ECM/PCM in the reverse order of removal.

8. Rewrite the immobilizer codes into the PCM with the PGM Tester. Refer to "Rewriting a New ECM/ PCM" in Service Bulletin 00-049, Immobilizer System (Type 2), found under Body Electrical.

NOTE:
For 1995-99 models, you will need all of the working ignition keys.





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