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Super Moderator
2016 Malibu 1LT 1.5T/6-speed 6T40
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3,898 Posts
The ECM is in the engine compartment under the hood. Black cover, sits right next to the fuse box. It's the thingy that sits diagonal. Easy to disconnect and remove but keep on mind it is encrypted/locked and unlocking, while it can be done, is not simple. Trifecta is tuning them now. You just start the process with them, send the ECM to them and they send it back. Not my cup of tea but to each their own.
 

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Premium Member
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2,922 Posts
I would not try to tune a 1.5 . They are locked for a reason, 1.5 is running on the edge of safety now to allow for fuel quality variances and altitudes.
 
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