Tacoma PreRunner Dbl Cab 2WD V6-3.4L (5VZ-FE) (2001)
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Oxygen Sensor: Technical Service Bulletins
Engine Controls - Bank 1/Bank 2 O2 Sensor identification
ENGINE
EG034-07
Title:
ENGINE BANK 1 AND BANK 2 A/F AND
O2 IDENTIFICATION
Models:
'93 - '08 Applicable Models
June 28, 2007
The information contained in this TSB supercedes TSB No. EG037-04. TSB No. EG037-04 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: 1AZ-FE, 2AZ-FE, 2AZ-FE (PZEV),
1GR-FE, 2GR-FE, 2GR-FSE, 2JZ-GE, 1MZ-FE, 3MZ-FE, 1UR-FSE, 3UR-FE, 2UZ-FE, 3UZ-FE, 5VZ-FE, and 1ZZ-FE.
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Bank 1 (B1) refers to the bank that includes cylinder No. 1.
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Bank 2 (B2) refers to the bank opposite bank 1.
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Sensor 1 (S1) refers to the sensor that is located before the catalytic converters.
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Sensor 2 (S2) refers to the sensor that is located after the catalytic converters.
Warranty Information
