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Understanding AFR: Defining AFR

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Defining AFR


00:00 We have already discussed the definition of AFR, but as tuners, we need a way of measuring, displaying and discussing the air fuel ratio.
00:08 This seems fairly straightforward, and it is, but in this section we will look in a little more detail about how we can measure air fuel ratio, how we can display it on a wideband meter and some of the more intricate aspects of changing between different fuels.
00:24 A solid understanding of these basic principals is essential before we can move on.
00:30 These are some of the same basic principals that many tuners get wrong and at best this could mean wasted time on the dyno or at worst, serious engine damage.

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