Canada - Engine Control - Oxygen Sensor Location Identification
BulletinTSB2030R
Issue Date
September 14, 2004
Title
ENGINE BANK 1 AND BANK 2 A/F AND O2 IDENTIFICATION
Component
ENGINE ELECTRICAL
Models
'90 - '10 Applicable Lexus Models
TSB REVISION NOTICE
- March 4, 2010: Applicability has been updated to include 2009 - 2010 model year vehicles.
Any previous printed versions of this TSB should be discarded. Be sure to review the entire content of this service bulletin before proceeding.
INTRODUCTION:
This service bulletin provides information on the proper identification of engine bank 1 and engine bank 2 for correct A/F sensor and oxygen sensor replacement.
This bulletin contains information that identifies engine bank 1 and engine bank 2 on the following engines:
2GR-FE, 2GR-FSE, 2GR-FXE, 3GR-FSE, 4GR-FSE, 2JZ-GE, 1MZ-FE, 3MZ-FE, 1UR-FE, 1UR-FSE, 2UR-FSE, 2UR-GSE, 3UR-FE, 1UZ-FE, 2UZ-FE, and 3UZ-FE.
- Bank 1 (B1) refers to the bank that includes cylinder No. 1.
- Bank 2 (B2) refers to the bank opposite bank 1.
- Sensor 1 (S1) refers to the sensor that is located before the catalytic converters.
- Sensor 2 (S2) refers to the sensor that is located after the catalytic converters.
APPLICABILITY:
WARRANTY INFORMATION:
APPLICABLE VEHICLES:
ENGINE BANK IDENTIFICATION:
A/F AND O2 SENSOR IDENTIFICATION:
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.