ECM Calibration

Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in 2.8 Duramax Diesel Engines Using GDS 2 – 2016-2021 Chevrolet & GMC

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2021 Chevrolet Colorado

NHTSA ID Number: 10183128 Manufacturer Communication Number: 16NA325   Summary This technical bulletin provides a procedure on how to properly identify if there is any aftermarket calibrations loaded on the ECM or and detection of a power up hardware installed.   SEOCONTENT-START Service Bulletin Bulletin No.: 16-NA-325 Date: October, 2020 TECHNICAL Subject: Identifying Non-GM ECM Calibration Use … Read more

Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in Duramax Diesel Engines Using GDS 2 – 2019-2023 Cadillac Chevrolet GMC

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General Motors

NHTSA ID Number: 10222660 Manufacturer Communication Number: 20-NA-090 Summary This informational bulletin provides a way for the technician to identify if the ECM has been modified.   General Motors Position on Aftermarket Power-Up Devices General Motors does not support or endorse the use of devices or modifications that when installed, increase the engine horsepower and torque. This … Read more