Getting a dyno tune this week and I can’t find any post on how dyno tuners tune chipped P28 ECUs. Do they use a live chip reader and plug directly into the ECU and use a program like Neptune for example? Whoever had their car dynoed and has a P28, can you tell me how that worked?

 

Theres a thing called an emulator. It basically plugs into the ECU where the chip would go, and allows you to do live tuning. Hope that helps.

 

Thanks man 👍🏿 I was confused on how it worked