The Roadster ECU, like most modern ECUs, is encrypted. So even if you could access the data you'd have to decrypt it to make any sense of it. No one has bothered to crack the encryption on the USDM ECU. Plus you'd have to figure out how to write new values to the ECU. Unfortunately, the Roadster ECU isn't MAP based like many Honda ECUs.What makes the USDM ecus so uncrackable ?? There's money to made there.
I guess the question is can a JDM ecu be used on USDM engines like most Honda ecus can?
Where does someone get one of these cracked ECU's?No, they are not the same. Physically they use the same hardware and enclosure but the software code is different. For instance, the JDM ECU for NA6 has been cracked and tuners modify it in Japan. The same cannot be said for the US version of the same ECU.
I had some down time with my car, so I sent them the ECU. Turn around time was nominal. I got back what I had sent them. They replaced a chip (gots a Dinan sticker on it) and did what ever voodoo they do. So I guess they did 'crack' the USDM ECU.Cool post. I imagine you had to send them your ECU and they returned it to you after performing their magic? I wonder if they swapped the JDM ECU into your case or whether they really did crack the USDM code.