Sequoia LTD 4WD V8-4.7L (2UZ-FE) (2001)
Catalytic Converter: All Technical Service Bulletins
Exhaust System - Excessive Exhaust Sulphur Odor
ENGINE
EG021-04
June 14, 2004
Title:
EXCESSIVE SULFUR DIOXIDE ODOR
Models:
'01 - '04 Sequoia
Introduction
Some customers may complain of excessive sulfur dioxide odor on 2001-2004 model year Sequoia vehicles under the following conditions:
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Stop and go driving.
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Heavy acceleration.
In order to reduce the sulfur dioxide odor, the Electronic Control Module (ECM) (SAE term: Powertrain Control Module/PCM) fuel cut control logic
has been modified and a new catalyst is provided. Follow the repair procedure to reflash the ECM and replace the catalytic converter assembly.
NOTE:
For more complete understanding of the root cause, refer to TSB No. EG003-03 "Sulfur Odor From Exhaust," dated February 24, 2003.
Applicable Vehicles
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2001 - 2004 model year Sequoia vehicles produced BEFORE the Production Change Effective VINs shown below.
Production Change Information
Warranty Information
Applicable Warranty:
This repair is covered under the Toyota Specified Major Emission Control Component Warranty. This warranty is in effect for 96 months or 80,000
miles, whichever occurs first, from the vehicle's in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.
Parts Information