Quote:
Originally Posted by Mr_Draco
It's not illegal. The issue is like you said, you can't just swap the ECU with another car because they are vin locked nor can you buy a new ECU without sending your old ECU in to GM. Even if you are able to acquire a new ECU, it is still almost impossible to swap ECUs for warranty work due to other issues.
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Why could you not have and program a new PCM? Keep your original a virgin. Getting ready to do just that.