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SVT Shelby GT500
Hanging Idle..
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<blockquote data-quote="91svtbird" data-source="post: 10804839" data-attributes="member: 37026"><p>The fact is 99% of the hanging idle issues should not be happening at all if the tune is correct. Especially regards to the "correct factory or professional flow-bench and established MAF meter curve. In fact most all these drivability issues are actually caused by these tuners.</p><p></p><p>These tuners are altering the known factory/flow-bench established meter curves which means the MAF meter/sensor combo is no longer sending accurate information to the EEC so all calculations made by the EEC will be "off". The correct MAF meter curve is the foundation of all calabrations in a mass air managed engine.</p><p></p><p>The best thing you can do is find a tuner that does not tune by manipulating the MAF transfer function settings when they tune. You are playing Russian roulette otherwise.....a word to the wise.......hopefully</p><p></p><p>Pure_Evil_GT500 sounds like you may have found such a tuner now. If I were you I would stick with that tune you are now running....why would you ever want to go back.......</p></blockquote><p></p>
[QUOTE="91svtbird, post: 10804839, member: 37026"] The fact is 99% of the hanging idle issues should not be happening at all if the tune is correct. Especially regards to the "correct factory or professional flow-bench and established MAF meter curve. In fact most all these drivability issues are actually caused by these tuners. These tuners are altering the known factory/flow-bench established meter curves which means the MAF meter/sensor combo is no longer sending accurate information to the EEC so all calculations made by the EEC will be "off". The correct MAF meter curve is the foundation of all calabrations in a mass air managed engine. The best thing you can do is find a tuner that does not tune by manipulating the MAF transfer function settings when they tune. You are playing Russian roulette otherwise.....a word to the wise.......hopefully Pure_Evil_GT500 sounds like you may have found such a tuner now. If I were you I would stick with that tune you are now running....why would you ever want to go back....... [/QUOTE]
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Hanging Idle..
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