Minggu, 15 Mei 2011

How to Adjust the Timing in a Toyota Tacoma

How to Adjust the Timing in a Toyota Tacoma

Adjusting the timing on a Toyota Tacoma requires special tools and a working knowledge of car programming systems. Under normal conditions, the Toyota Tacoma ECU adjusts the timing automatically, however, aftermarket performance parts require reprogramming the ECU. Adjusting the timing on a Toyota Tacoma allows the tuner to maximize power gains across the RPM range or target specific areas.



things you'll need:

  • Computer
  • Reprogramming software
  • PC interface device
    • 1

      Install the reprogramming software provided by the parts manufacturer onto the computer and connect the computer interface device. Plug the other end of the interface device in the OBD II diagnostic connector under the steering wheel.

    • 2

      Turn the key to the "On" position without starting the engine of the Toyota Tacoma and shut of any accessories such as the radio, climate controls and lights. Turn the interface device on and wait for the computer to confirm automatic connection.

    • 3

      Run the computer software and enter all of the necessary information pertaining to your vehicle including vehicle identification number (VIN), found by looking at the lower driver's side dash through the windshield.

    • 4

      Select the software version to upload and make any changes desired. Start the data upload and verify the progress bar appears on the monitor. Wait until the "Data Transfer Complete" message appears. This process takes as long as 45 minutes, depending on the size of the file.

    • 5

      Place the key in the "Off" position and disconnect the interface kit from the OBD II diagnostic connector. Start the engine and allow it to idle until it reaches normal operating temperature.

Tips & Warnings

  • Failure to complete all updates can result in ECU damage and require replacement.

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