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07 Tahoe AFM issue

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Moderators: mikel, 06MonteSS

Post Mon Oct 23, 2017 3:23 pm

Posts: 1
I used the 87 octane tune, and disabled the AFM and noticed some light metallic sounds under light load, almost light detonation. I turned the AFM back on and the sound was gone. Anyone else experience this? You would think it would be the other way around if there was an issue with the AFM. Could it need more octane and actually be detonation? I dont think so because of it disappearing when AFM is active, unless that changes something else.

Any insight would be greatly appreciated! I want to disable it, but dont want to risk damaging the engine.


Post Wed Oct 25, 2017 12:51 pm

Posts: 54121
Location: DiabloSport World Headquarters

log it to determine if it is actually knocking.
Mike Litsch
Powerteq Customer Service Manager
Diablo Tech support by phone:
M-F 8:00 AM to 5:00 PM EST

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