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ENGINE

EG015-07

Title:

Technical Service Information Bulletin

June 28, 2007

ENGINE BANK 1 AND BANK 2 A/F AND O2 IDENTIFICATION

Models:

'90 ­ '08 Applicable Models

TSIB UPDATE NOTICE: The information contained in this TSIB supercedes TSIB No. EG010­04. TSIB No. EG010­04 is now obsolete and should be discarded. 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: 2GR­FE, 2GR­FSE, 4GR­FSE, 2JZ­GE, 1MZ­FE, 3MZ­FE, 1UR­FSE, 3UR­FE, 1UZ­FE, 2UZ­FE, and 3UZ­FE. S Bank 1 (B1) refers to the bank that includes cylinder No. 1. S Bank 2 (B2) refers to the bank opposite bank 1. S Sensor 1 (S1) refers to the sensor that is located before the catalytic converters. S Sensor 2 (S2) refers to the sensor that is located after the catalytic converters.

Warranty Information

OP CODE

DESCRIPTION

TIME

OFP

T1

T2

N/A

Not Applicable to Warranty

­

­

­

­

Applicable Vehicles

MODEL

MODEL YEAR

ENGINE

ES 300 ES 330 ES 350 GS 300 GS 350 GS 400 GS 430 GX 470 IS 250 IS 300 IS 350 LS 400 LS 430

1994 ­ 2003 2004 ­ 2006 2007 ­ 2008 1993 ­ 2005 2007 ­ 2008 1998 ­ 2000 2001 ­ 2005 2003 ­ 2008 2006 ­ 2008 2001 ­ 2005 2006 ­ 2008 1990 ­ 2000 2001 ­ 2006

1MZ­FE 3MZ­FE 2GR­FE 2JZ­GE 2GR­FSE 1UZ­FE 3UZ­FE 2UZ­FE 4GR­FSE 2JZ­GE 2GR­FSE 1UZ­FE 3UZ­FE

Lexus Supports ASE Certification

Page 1 of 3

ENGINE BANK 1 AND BANK 2 A/F AND O2 IDENTIFICATION ­ EG015-07 Applicable Vehicles (Continued)

MODEL MODEL YEAR

June 28, 2007

ENGINE

LS 460/460L LX 470 LX 570 RX 300 RX 330 RX 350 SC 300 SC 400 SC 430

2007 ­ 2008 1998 ­ 2007 2008 1999 ­ 2003 2004 ­ 2006 2007 ­ 2008 1992 ­ 2000 1992 ­ 2000 2002 ­ 2008

1UR­FSE 2UZ­FE 3UR­FE 1MZ­FE 3MZ­FE 2GR­FE 2JZ­GE 1UZ­FE 3UZ­FE

Engine Bank Identification

Engine Bank Identification: 1UZ­FE, 2UZ­FE, 3UZ­FE, 1UR­FSE, 3UR­FE Bank 2 No. 8 Cylinder No. 6 Cylinder No. 4 Cylinder No. 2 Cylinder Bank 1

No. 7 Cylinder No. 5 Cylinder No. 3 Cylinder No. 1 Cylinder

Front of Vehicle

Engine Bank Identification: 2GR­FE, 1MZ­FE, 3MZ­FE

No. 1 Cylinder

No. 3 Cylinder

No. 5 Cylinder

Bank 1

Bank 2

Front of Vehicle

No. 2 Cylinder

No. 4 Cylinder

No. 6 Cylinder

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ENGINE BANK 1 AND BANK 2 A/F AND O2 IDENTIFICATION ­ EG015-07 Engine Bank Identification (Continued)

June 28, 2007

Engine Bank Identification: 2GR­FSE, 4GR­FSE

Bank 1

Bank 2

No. 5 Cylinder

No. 6 Cylinder

No. 3 Cylinder No. 1 Cylinder

No. 4 Cylinder

No. 2 Cylinder

Front of Vehicle

Engine Bank Identification: 2JZ­GE

Bank 2

Bank 1

Front of Vehicle

A/F and O2 Sensor Identification

Sensor Identification: FWD V6

A/F Sensor (Bank 2, Sensor 1) (B2, S1)

A/F Sensor (Bank 1, Sensor 1) (B1, S1)

Heated Oxygen Sensor (Bank 1, Sensor 2) (B1, S2)

TWC Heated Oxygen Sensor (Bank 2, Sensor 2) (B2, S2)

Front of Vehicle

Page 3 of 3

Information

eg015l07

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