505CI Twin-Turbo Pontiac Engine - Twin-Turbo Tail Twister
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The Target Air/Fuel ratio table tells the FAST ECU what A/F ratio the tuner wants the engine to be running at every rpm and load condition that it could encounter. This program will compare the actual A/F ratio, as measured by the wideband O2 sensor, to this table and then attempt to add or subtract fuel to get them to match. It's critical that the tuner knows what these numbers need to be for the engine so there is a safe place to begin tuning. View Related Article
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