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View Full Version : Gen IV ECM Types



GMPX
November 25th, 2006, 02:44 AM
Wondering what type of ECM you have in your GenIV vehicle?
Lift the hood and take a look...

EFILive currently supports reading / programming & locking of the all the GenIV ECM's.

E40 was the first GenIV ECM to be used.
Some specs - 2 x MC683xx CPU's, 1Mb Burst Flash memory.

E38 I think was first used on the Z06 and now on many other 2006+ vehicles.
Some specs - 1 x MPC561 CPU, 1 x MC9S12 CPU, 2Mb Burst Flash memory.

E67 is the new ECM used on many 2007+ GenIV vehicles.
Some specs - 1 x MPC565 CPU, 1 x MC9S12 CPU, 2Mb Burst Flash memory.

Cheers,
Ross

http://efidownload.iqd.co.nz/software/GMPX/GENIV_ECM.jpg