This is a discussion on Air Fuel Ratio within the Computer and Fuel Systems forum, part of the Audi Reviews category; I have 1.8T Audi A4 . I just upgraded to a ATP GT28RS turbo kit. With a tuned ECU my ...
I have 1.8T Audi A4. I just upgraded to a ATP GT28RS turbo kit. With a tuned ECU my air fuel ratio is still pretty high. I talked to a couple shops and they're saying that air fuel ratios up to 12.5:1 are still okay. I always thought that air fuel ratios should be in the elevens for turbo charged cars. Does anyone know what an caceptable air fueld ratio is under wide open throttle?
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