Using RevFlash

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Introduction

RevFlash is our flashing utility that is used to write our calibration into ECU

Windows 7+, an Internet connection and a J2534 compliant cable is required

Compatible cables

RevFlash is compatible with most J2534 compliant cable. If you are already own one, it might be possible it is compatible

Tested cables

  • OpenPort 2.0 - Good performance
  • Godiag GD101 - Good performance
  • Mongoose Pro JLR - Good performance
  • SnapOn Pass Thru Pro - Slower writing speed
  • MINI-VCI J2534 - Extremely slow writing speed, it should be avoided

Using RevFlash

Driver installation

If the OpenPort driver is not installed in your computer, RevFlash will notice you it is missing and it will suggest the installation

The cable needs to be plugged into the laptop to complete the driver installation.

ECU Identification

Once logged, you can start the identification
Automatic system: No compatible file present on the server

The purpose of the identification process is to deliver a file compatible with your ECU. The identification process also collects information about your vehicle which is used for tracking and better support

The tune is limited to one vehicle, although the cable is not limited to one VIN

 

The server has reported no available tuned files

You will get this notice if the server is not able to deliver a compatible file that match your ECU, the purchased calibration and selected options

For the 2.5 market alone, they are over 80+ different ECUs to support, and our wide range of options leads to hundreds of file variations. It might be possible your ECU is running a less common firmware that will require manual processing on our end.

 

Flashing your calibration

Simply select the calibration you would like to write and hit Flash! RevFlash will guide you through the flashing process

A battery charger is mandatory, the cooling fans might start blasting at full speed which could drain your battery!

Special note: VW 2.5 2007-2008

For 2007-2008, the engine control unit (ECU) will require a patch. On your first flash, you will need to flash the patch prior to flashing the tune.

Once the patch has been applied, you will be free to flash between all calibration in a matter of 3–4 minutes

 

Reading error codes

Trouble codes section

RevFlash give the ability to read and clear trouble codes. You can also select a code and click on Search. The search will query a list of relevant articles for troubleshooting, which is specific to VW

 

Troubleshooting

Communication error with ECU or cable

  1. Unplug the cable from both the OBD2 and USB port
  2. Cycle ignition off, ignition on
  3. Plug the cable on the laptop (USB port)
  4. Plug the cable on the OBD2 port
  5. Ensure the cable is properly inserted into the OBD2 port
  6. Restart the application and try again

If the issue persist, please contact support.

RevFlash ask to install the driver everytime I start the application

Make sure the cable is plugged prior to installing the driver

If the issue persist, please contact support.

I am having issue after flashing the tune

Flash back to the stock calibration in the meantime and reach out to support.

I don't have a battery charger, I attempted the flash and now my battery is dying

  • Unplug the fuse for the cooling fans or disconnect the cooling fans
  • Close all electrical consumers (HVAC, Lights, Radio)
Reference for Rabbit MK5 fuse box
Jetta MK6 fuse box