Bought a car, tune is completely borked. Halp?
#81
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Anything is possible. I had an AEM sensor go apeshit on me before and take tons of fuel out of my tune while autotuning until the car ran like complete horseshit. Then the next day (after reverting my map) the afr's were spot on. I ended up replacing that sensor and all is well.
#85
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Only thing I can think of left is maybe the wideband lies. Since the ms uses it I doubt it is since it didn't act lean ever.
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11-14-2018 12:18 PM