UNLOCK the GPEC 5 ECM ??

[jay21mojave]

This is the most recent ECM; found on many late 21's and up. It has the electrical connections on the TOP not on the side (a GEPC 2) . Last check in March 2023; had not found anyone that unlocked this version of ECM.. Appreciate any info on companies that are successful in Unlocking. TIA

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[AustinKalb]

What does unlocking the ECM do?

 

[ParatusExpeditions]

Many do. They just don’t support OBDII flash yet but bench flashing (no need to open ECU) is available and working.

Usually the flashing evolves:
1. Bench flash, ECU open (mostly hardware attack)
2. Bench flash, ECU stays closed (software, because the protection/encryption keys were retrieved as part of 1.)
3. OBDII flash, may or may not happen with the GPEC5 depending on what security countermeasure they have implemented

They definitely have 1 and 2 already supported.

 

[jay21mojave]

What does unlocking the ECM do?

When performance improvement equipment; e.g.. superchargers or turbos are installed, the ECM must be unlocked and a new Tune is installed to provide timing and fuel curves needed. There are also tunes that can be installed to improve performance without adding a supercharger or turbo.

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