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MAF calibrating with VF Tuner

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New to tuning. I have VF Tuner software for my Toyota vehicles. I have a Tacoma, Tundra, and 4Runner. For Intakes and Exhaust, I’d like to tune the ECU for those and not sure where to start. Do I start with scaling the MAF frequency? Remove 3% from each table? I don’t see too much discussion on using VF Tuner here.

Christopher,

HPA's practical reflash tuning course explains the entire process in detail, as well as many other facets of reflash based tuning, so that course is likely your best bet.

https://www.hpacademy.com/courses/practical-reflash-tuning/

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