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SVTPerformance's Chain of Restaurants
Tuning À la carte
Help! SCT tuner mistake
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<blockquote data-quote="BruceH" data-source="post: 11293117" data-attributes="member: 106410"><p>I was referring to the fuel trims (adaptive learning) in my original post. That's why I said stft and ltft. Fuel trims are the correction being made to keep stoich, you have it backwards. What did you read?</p><p></p><p>There is no way your stft and ltft are only varying 1%.</p><p></p><p>The OP has all the signs of an improperly scaled maf xfer function. More than likely his tuner used the value file and left it. When the car was on the dyno the fuel tables were adjusted to get commanded lambda instead of fixing the maf xfer.</p></blockquote><p></p>
[QUOTE="BruceH, post: 11293117, member: 106410"] I was referring to the fuel trims (adaptive learning) in my original post. That's why I said stft and ltft. Fuel trims are the correction being made to keep stoich, you have it backwards. What did you read? There is no way your stft and ltft are only varying 1%. The OP has all the signs of an improperly scaled maf xfer function. More than likely his tuner used the value file and left it. When the car was on the dyno the fuel tables were adjusted to get commanded lambda instead of fixing the maf xfer. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Help! SCT tuner mistake
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