Can 2 HPT tune one car?
 

Just got an HPT, bought 2 credits.
My tuner, tune my car with his HPT. I'm sure it's a shop HPT.
If I go in there and make small adjustments,
will he still be able to make adjustments with his HPT?
Or is his credits no good anymore for my car?

The credits are good for your ECU electronic serial number. Your interface is licensed to your car through your credits used. His is licensed by his credits.

Credit & ECU info is stored in the interface. You are good to make changes (unless he locked it) and so is he.

Yes you can, you can have your one car tuned by 20 if you want.

I had the same thing done, went for a basic tune on the dyno after I had done most of the street tuning myself. Then after the dynotune was flashed, I continued fine-tuning it myself again.

Thanks guys.
Iam Broke, you have been more help than I could have imagined.
I'm slowly learning.

Yes you can as long as it isn't a custom OS. That would cost 2 more credits.

Please explain what a custom OS is.
Thanks

HP Tuners will (in some cases) let you run a custom operating system they developed for your ECU to expand the tables for more manifold pressure (boost) different timing tables, VE tables in place of virtual VE, ect. It costs another two credits if your tuner converts the OS to a custom one. Once you are licensed for it, it's good to go same as your base tune.