Fixing Toyota Spark Knock

Nov. 27, 2023
Some 2012-2014 Toyota Tacoma trucks equipped with 1GR-FE engines may exhibit a spark knock (detonation) under light acceleration and/or up-hill operation in hot weather of 80 degrees Fahrenheit or higher.

Some 2012-2014 Toyota Tacoma trucks equipped with 1GR-FE engines may exhibit a spark knock (detonation) under light acceleration and/or up-hill operation in hot weather of 80 degrees Fahrenheit or higher. The ECU logic has been modified to reduce this possibility.

CALIBRATION INFO

YEAR              DRIVETRAIN              TRANSMISSION PREVIOUS CAL ID        NEW CAL ID

2012...........4WD/2WD PreRunner........5-speed AT............30455000..................30455100

2012........... 2WD...................................6 MT.....................30467000..................30467100

2012........... 4WD...................................6 MT.....................30468000...................30468100

2013-2014....4WD.2WD PreRunner.......5 AT.......................30480000...................30480100

2013-2014....2WD.................................6 MT.......................30481000..................30481100

2013-2014.....4WD................................6 MT.......................30482000...................30482100

Software version 9.20.022 or later is required.

Sponsored Recommendations

Snap-on Training: Approach to Intermittent Problems

Snap-on's live training sessions can help you develop your own strategy for approaching vehicle repair.

Snap-on Training: ADAS Level 2 - Component Testing

The second video for Snap-on's comprehensive overview of Advanced Driver Assistance Systems (ADAS), covering the fundamental concepts and functionalities essential for automotive...

Snap-on Training: Intro to ADAS

Snap-on's training video provides a comprehensive overview of Advanced Driver Assistance Systems (ADAS), covering the fundamental concepts and functionalities essential for automotive...

Snap-on Training: Guided Component Tests Level 2

The second video for Snap-on's comprehensive overview of Guided Component Tests, covering the fundamental concepts essential for diagnostic procedures.

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!