2008 GMC 4.3l

Post here with any questions regarding the use of the i2 on supported Chevrolet, GMC, Cadillac, Buick, and Pontiac applications.

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mk2916
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Joined: Fri Aug 28, 2026 3:29 pm

2008 GMC 4.3l

Post by mk2916 »

Updated software on the handheld I3 as suggested but the unit will not access the ECM. Purchased on Amazon where is was suggested for my vehicle. Is there an update to allow tuning on the V6? Otherwise I will need to return.
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06MonteSS
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Re: 2008 GMC 4.3l

Post by 06MonteSS »

No... the 2008 4.3 v6 engine is not supported at all... never has been... only the v8's are supported...
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