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07 A6 C6, 7194 Predator. It is suggested that on a C6 corvette to put 100+ miles on it after adjusting a change in your fuel trims and then recheck. By then the temperature has risen and the humidity changed rendering the results of a recheck useless. Normally how accurate does a fuel trim change become? Example, say your trims are -3 and -3 and you adjust by +2 and +2. Will this give you -1 and -1 under the same weather conditions?

yes, that's what should happen...