Read this various Toyota technical service bulletins for various Toyota Vehicles, including Camry, Corolla, Tundra, MR2 and more. Technical service bulletins publication date between 2000-2004:
* ECM RESET MEMORY FUNCTION Whenever an automatic transmission is replaced, overhauled or individual components are replaced, use this procedure to clear Engine Control Module (ECM, SAE term: Powertrain Control Module, PCM) “Learned Values” to prevent subsequent driveability complaints, applies to: 2000 - 2003 model year ECHO and Celica vehicles, 2001 - 2003 model year Highlander and RAV4 vehicles, 2002 - 2003 model year Camry vehicles, 2002 - 2003 model year Solara vehicles with 2AZ engine, 2003 model year Matrix vehicles, 2004 model year Sienna vehicles, 2000 model year Highlander and RAV4 vehicles, 2000 - 2001 model year Camry vehicles, 2000 - 2001 model year Solara vehicles with 5S engine, 2000 - 2003 model year Solara vehicles with 1MZ engine, 2000 - 2003 model year 4Runner, Avalon, Corolla, Land Cruiser and Sienna vehicles, 2000 - 2003 model year Tacoma and Tacoma Pre-Runner vehicles, 2000 - 2003 model year Tundra vehicles, 2001 - 2003 model year Sequoia vehicles.
* O2S TEST RESULTS (MODE 05) This Service Bulletin contains Oxygen Sensor (O2S) Monitor threshold values for all models from 1996 to 2003 and some 2004 models. Starting in 2004, the O2S Monitor threshold values can be found in the repair manual. These values are used when analyzing the O2S test results to determine the O2S condition, applies to: All 1996 - 2003 model year Toyota vehicles, 2004 model year Corolla, ECHO, Matrix and Sienna vehicles, 2004 model year Scion xA and xB vehicles.
* M.I.L. “ON” P0300, P030# Under certain driving conditions, some 2000 model year Celica GTS vehicles (2ZZ-GE engine) may exhibit M.I.L. “ON” with DTC P0300 (Random Misfire) and/or P030# (Single Cylinder Misfire). The Engine Control Module (ECM) logic and fuel injectors have been modified to correct this condition, applies to: 2000 model year Celica GTS vehicles with 2ZZ-GE engine.
* READINESS MONITOR DRIVE PATTERNS The On-Board Diagnostic (OBDII) system is designed to monitor the performance of emission-related components and report any detected abnormalities in the form of Diagnostic Trouble Codes (DTCs). Since the various components need to be monitored during different driving conditions, the OBDII system is designed to run separate monitoring programs called Readiness Monitors. Many state Inspection and Maintenance (I/M) programs require that vehicles complete their Readiness Monitors prior to beginning an emissions test, applies to: All 1996 - 2002 model year Toyota vehicles, with engine: Echo (1NZ-FE), MR2 (1ZZ-FE), Tercel (5E-FE), Paseo (5E-FE), Corolla (7A-FE, 1ZZ-FE), Celica (7A-FE, 5S-FE, 1ZZ-FE, 2ZZ-GE), Camry (5S-FE, 1MZ-FE), Solara (5S-FE, 1MZ-FE), Avalon (1MZ-FE), RAV4 (3S-FE), Sienna (1MZ-FE), Supra (2JZ-GE, 2JZ-GTE), Tacoma (2RZ-FE, 3RZ-FE, 5VZ-FE), Previa (2TZ-FZE), 4Runner (3RZ-FE, 5VZ-FE), Land Cruiser (1FZ-FE), Prius (1NZ-FXE), T100 (3RZ-FE, 5VZ-FE).
* SULFUR ODOR FROM EXHAUST Some owners of Toyota vehicles may experience a sulfur-like or “rotten egg” odor from the exhaust system. Sulfur is a natural component of crude oil from which gasoline is refined and the amount of sulfur can be decreased through the refining process. The amount of sulfur in fuel sold in California is regulated, however gasoline sold in other states can have substantially higher sulfur content. Sulfur content also varies considerably between gasoline brands and locations.
* EVAP SYSTEM OPERATION INFORMATION This service bulletin provides supplemental information regarding the system design, operation, and diagnostics of the Early Type (Non-Intrusive) and Late Type (Intrusive) EVAP Systems found on 1996 model year and later OBD II equipped vehicles.
* GENERAL MAINTENANCE TIP To help prevent unnecessary complications during the oil fill process, no undue load should be placed on the oil baffle attached to the inside of the valve cover (see illustration). This baffle is designed to deflect oil and should not be used to support the weight of heavy oil fill devices. These devices can place stress on the baffle, and bend or break it during the oil fill process.
* M.I.L. “ON” DTC P1349 - VVTi ACTUATOR Under certain conditions customers may experience a MIL “ON” condition with DTC P1349 indicating a variable valve timing (VVTi) malfunction. In some cases, the cause of this DTC may be the VVTi actuator. Use the procedures in this bulletin to verify the operation of the actuator, applies to: 2000 - 2002 model year Corolla, Celica, MR2 Spyder, and ECHO vehicles.
* REPAIR MANUAL CORRECTION: VALVE CLEARANCE ADJUSTMENT Repair Manual corrections have been made to the Valve Clearance Adjustment procedures for the 2000 model year Celica GTS with the 2ZZ-GE engine to allow effective use of the Special Service Tool.
* VVTLi - INTERMITTENT VARIABLE LIFT OPERATION In some cases, owners of 2000 - 2002 model year Celica GTS vehicles equipped with the 2ZZ-GE engine may complain of an intermittent slight loss of power and/or variable lift function at engine speeds over 6,000 rpm under high load. This can be caused if the bolt securing the rocker shaft separates, allowing the shaft to rotate in its bore. This rotation, when it occurs, can cause misalignment of the oil feed passages to the rocker shafts, resulting in a lack of variable lift operation and low power at higher engine rpm, applies to: 2000 - 2002 model year Celica GTS vehicles equipped with 2ZZ-GE engine.
* ACCESSORY DRIVE BELT/BELT TENSIONER ASSEMBLY NOISE Some 1ZZ-FE and 2ZZ-GE engines may exhibit squealing and/or rattling noises emanating from the engine compartment during vehicle operation, especially during deceleration at slow speeds after cold soak. The Accessory Drive Belt and Belt Tensioner have been improved to correct this condition, applies to: 2000 - 2001 model year Celica GT/GTS and MR2 Spyder vehicles.
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Various 11 Toyota Technical Service Bulletins for Toyota Engine.pdf (2MB, multiple pdf files).
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