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SVTPerformance's Chain of Restaurants
The Distillery
E98?
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<blockquote data-quote="65fastback2+2" data-source="post: 12721431" data-attributes="member: 58051"><p>One time I got a check engine light....figured it was due to the ethanol changing during a season. Went to my tuner's (Blankenship ftw!) and he datalogged it and showed me where it was pulling out ~25% fuel from being too rich! He explained a certain amount of adjustment by the pcm was normal but outside of a certain range (I forget) is when the PCM will throw the CEL on but it was still adjusting for me as it was supposed to. We pulled 25% fuel out of it, light went off and I ended up beating on it for another 8 months or so before selling it (including multiple low 12.0 passes at the track!)</p><p></p><p>So, I have personal experience that it will at least adjust up to 25%!</p><p></p><p>I dont really see there being a pcm limit....its just adding and removing fuel which it should be able to do without any pcm limitations (there could be mechanical limitations, say youre maxed on fuel and it needs more fuel, it wont be there)</p></blockquote><p></p>
[QUOTE="65fastback2+2, post: 12721431, member: 58051"] One time I got a check engine light....figured it was due to the ethanol changing during a season. Went to my tuner's (Blankenship ftw!) and he datalogged it and showed me where it was pulling out ~25% fuel from being too rich! He explained a certain amount of adjustment by the pcm was normal but outside of a certain range (I forget) is when the PCM will throw the CEL on but it was still adjusting for me as it was supposed to. We pulled 25% fuel out of it, light went off and I ended up beating on it for another 8 months or so before selling it (including multiple low 12.0 passes at the track!) So, I have personal experience that it will at least adjust up to 25%! I dont really see there being a pcm limit....its just adding and removing fuel which it should be able to do without any pcm limitations (there could be mechanical limitations, say youre maxed on fuel and it needs more fuel, it wont be there) [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Distillery
E98?
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