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Enginerd · 10-11-2009, 11:55 AM

The internet is a great place to disseminate information, this message board is no exception however there seems to be a lot of misinformation relative to our ECM family specifically the Camaro ECM so I’d like to take a minute to address some statements to allow a glimpse into how we program these controllers.

Does the E38 have a “flash counter”?
Both the original E38A and E38B have support for a flash “tracking system” of sorts. While it’s not as in depth as the Bosch E35 used on the LMM trucks it does exist however current production releases have it disabled, but this could change at any time. When programmed by a GM Facility the unit already stores the programming date (as sent by the programming software) as well as the programming station or repair facility ID.

OLMS/Odometer
OLMS does have an Odometer?
Yes it does, its used for a very small part of the OLMS system operation.

“OLMS is partially in the ECM”
OLMS resides in it entirety in the ECM. On this note OLMS does not read mileage from the IPC or any other module in the vehicle.

“The 2009.5 G8 ECM is the same as the Camaro”
While they both have the revisions for the new version 8 software they are most certainly not the same. The 2009.5 L76/LS3 G8 uses the 12625455 ECM for software rev 8.9 while the Camaro uses the 12633238 for the newer 8.10 software. In fact if you load a Camaro calibration into the G8 ECM it will render it unusable.

http://www.camaro5.com/forums/showpo...3&postcount=74
AFM actually can be controlled by the transmission status bit, this is how it’s turned off in Manual mode otherwise when the ECM saw the conditions even in manual mode to enter AFM it would. The AFM enable by trans status bit can be set in the ECM.

10-11-2009, 11:55 AM	#33
Enginerd Drives: GM Join Date: Oct 2009 Location: Milford, MI Posts: 6	The internet is a great place to disseminate information, this message board is no exception however there seems to be a lot of misinformation relative to our ECM family specifically the Camaro ECM so I’d like to take a minute to address some statements to allow a glimpse into how we program these controllers. Does the E38 have a “flash counter”? Both the original E38A and E38B have support for a flash “tracking system” of sorts. While it’s not as in depth as the Bosch E35 used on the LMM trucks it does exist however current production releases have it disabled, but this could change at any time. When programmed by a GM Facility the unit already stores the programming date (as sent by the programming software) as well as the programming station or repair facility ID. OLMS/Odometer OLMS does have an Odometer? Yes it does, its used for a very small part of the OLMS system operation. “OLMS is partially in the ECM” OLMS resides in it entirety in the ECM. On this note OLMS does not read mileage from the IPC or any other module in the vehicle. “The 2009.5 G8 ECM is the same as the Camaro” While they both have the revisions for the new version 8 software they are most certainly not the same. The 2009.5 L76/LS3 G8 uses the 12625455 ECM for software rev 8.9 while the Camaro uses the 12633238 for the newer 8.10 software. In fact if you load a Camaro calibration into the G8 ECM it will render it unusable. http://www.camaro5.com/forums/showpo...3&postcount=74 AFM actually can be controlled by the transmission status bit, this is how it’s turned off in Manual mode otherwise when the ECM saw the conditions even in manual mode to enter AFM it would. The AFM enable by trans status bit can be set in the ECM.