This thread is for discussing and sharing our growing knowledge and experience with VersaTune. The aim is to help VersaTune users and assist potential users make an informed decision.
To begin with, here are some installation tips:
1. Purchase a Tactrix Openport 2.0 from Tactrix in San Francisco. While you're on their website, download and install the J2534 driver on a laptop PC in preparation.
2. Purchase a copy of VersaTune from VersaTuner - An Innovative Tuning Solution and when the licence arrives, download and install it on the same laptop.
3. Read the literature that comes with VersaTune, it's only about 15 pages. Don't go near your car until completing this vital step.
4. Hook up the Tactrix Openport between a USB port on your laptop and the OBD port on your car. Make sure the laptop is running on mains power - a flat computer battery could permanently disable your car.
5. Install VersaTune on your car, but first make sure the car battery is in good condition, it will stand with the ignition in the ON position for around 25 minutes while VersaTune reads and saves a copy of the factory tune. It will then install the base tune. You can then chose to follow up with installation of one of the other tunes in the VersaTune database.
6. The literature explains the process you now need to follow, which involves doing some miles and logging fuel trims, followed by some fine tuning of the MAF settings, followed by more logging to validate the changes.
It's not rocket science, but it's probably not for a novice. It's important to be patient and methodical. You must make one change at a time, then test and validate before moving to the next change.
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Anyway, I'm off to do some miles and play with my STFT's.