hp tuners questions
Therefore if you are tuning pre-2005(?) vehicles that used a PCM, you can tune 4 different vehicles. And you can tune each one as many times as your want, even 100 times.
Starting in 2005(?) GM switched to using a separate ECM (engine) and TCM (trans). As long as the vehicle numbers in the ECM and TCM match (as they should with a factory car), with 8 credits you can still tune 4 different vehicles. However if you build a custom car with non-matching ECM and TCM you may need to use 2 credits for each ECM and TCM. More info:
http://www.hptuners.com/products/vcmsuite_vehicles.php
Additional credits cost $50 each, so $100 per vehicle or xCM.
Last edited by mrvedit; Apr 27, 2015 at 04:36 PM. Reason: Correction and additional info
Therefore if you are tuning pre-2005(?) vehicles that used a PCM, you can tune 4 different vehicles. And you can tune each one as many times as your want, even 100 times.
Starting in 2005(?) GM switched to using a separate ECM (engine) and TCM (trans); with 8 credits you can then only fully tune 2 vehicles.
Additional credits cost $50 each, so $100 per xCM.
Therefore if you are tuning pre-2005(?) vehicles that used a PCM, you can tune 4 different vehicles. And you can tune each one as many times as your want, even 100 times.
Starting in 2005(?) GM switched to using a separate ECM (engine) and TCM (trans); with 8 credits you can then only fully tune 2 vehicles.
Additional credits cost $50 each, so $100 per xCM.
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I have experience with swap vehicles (LSx engine/trans in other cars) and some of these people bought mismatched ECMs and TCMs with different vehicles numbers. IIRC they ended up having to use 2 credits for the ECM and 2 credits for the TCM.
I have experience with swap vehicles (LSx engine/trans in other cars) and some of these people bought mismatched ECMs and TCMs with different vehicles numbers. IIRC they ended up having to use 2 credits for the ECM and 2 credits for the TCM.
What you might be thinking about is people who went to a custom os. Also people who swapped from one os to another. Both of these would require 4 credits.
The HP Tuners Suite is designed for tuning your car, not just scanning it. While it will of course show the same codes as a simple scanner, you can log many engine parameters over a period of time, and such logs are very beneficial for debugging problems. There is a significant learning curve to all this, even to learning to fully use the scanner and logging.
Why not tell us what your plans and needs are. We will also be happy to answer more specific questions.
From truck to car) would require 4 credits. 2 to register the ecm so I can over write it and 2 to license the car file I want to install? Is this right?








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