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Old 03 Jul 2008, 10:31 am
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Default apexi v- afc controller , tunning on a 93 del sol 1.6 vtec?

purchased a vafc controller have it installed , wondering where near grand rapids mi for tunning or any set easy to understand perametere on line that i could find to help with tunning
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Old 03 Jul 2008, 10:46 am
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AFC controllers are quite easy to understand. There's really no online "class" which I know off that I can direct you to. However, to even start to tune yourself, make sure you have a wideband o2 sensor installed along with a visible readout or otherwise connected to a datalogger. This way you can accurately find points that needs correction. When you go into "settings" from the main menu, the first two options should be something like "Wide Throttle" and "Narr Throttle". Everything else should be self explanatory (ie. vtec rpm set and things like that). Wide throttle is the map that your car follows when it reaches the condition for WOT (wide open throttle). That could be when the throttle is pushed in 50% or more (that can be set manually on the AFC too). Now, you can try to do this without a datalogger, but a wideband o2 is a MUST. You can't do this with one of those narrowband o2 guages. If you do, you could end up damaging your car. Basically, raising points in that line "adds fuel" and lowering it "removes fuel". But what it really is doing is modifying the signal that's going into the ECU.Once you have everything, you want your a/f to start out around 14.5 (ideal) and ease your way down to about 13 (rich). However, the real tuning is when you can get onto a dyno and mess with the a/f. The torque line is what guides the a/f direction and not the other way around. Some motors like it better rich, some prefer lean. But, leaner usually does create more power -- also leads to detonation and such. There's a fine line here.Narr Throttle is the same concept but is the map your car follows when you're driving around town or cruising (throttle is usual below 60%).Refer to your manual or visit apexi site for an online manual.
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Old 03 Jul 2008, 11:01 am
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It's spelled tuning.
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