Is the computer in your vehicle locked from a previous tuner? If so we can help. A locked PCM means that you can not read, write, or erase the PCM. The problem is often the tuner shops that do this go out of business, or worse you purchased the vehicle used and do not know who locked it. Without the password the computer is completely useless. We offer a PCM unlocking service that is compatible with most LS1, V6, E38 E67, and E40 PCM’s. Currently T42’s not supported. Simply purchase the service below and send the computer to the Mooresville NC office. Please note that a 5-10 business day turn around time is common and to be expected. Unlocking a PCM is a complicated procedure and time is needed to do so.