No.marcohdh wrote:I try to read the ECU in bench. Is it possible that the immobilizer release is missing and therefore I can not read it?
It is most likely Tuner Locked!marcohdh wrote:ECU is tuned, is from a Hennessy.
Meaning the Key has been changed, it no longer follows the GM formula to unlock.
Your choices are few, trying known possibilities or Brute Forcing it!
Somewhere in this program is the ability to enter a User Defined Key manually, try 0x0000 or 0xFFFF or the Seed (0x533D).