SUPER AFC vs. Upgraded computer
#1
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SUPER AFC vs. Upgraded computer
Just got my FD up and running. I through on a new downpipe, highFlow cat, then exhaust...Car is running super lean and it idles funny. Will an AFC fix it or do i need a computer..? Anythoughts would be great
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Don't get the S-AFC and don't drive your car hard as it is. You need to lower your boost back down to 10 psi in order to avoid running lean with a high-flow cat. Whatever you do, don't open the intake.
You can control boost with a good controller like the AVC-R or go ghetto with the home depot controller.
You can control boost with a good controller like the AVC-R or go ghetto with the home depot controller.
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Originally posted by HottX
So my next step is to get an upgraded ECU..? new to mazdas soo im clueless..before i put the cat on it was running super rich, now its dangerously lean....>
So my next step is to get an upgraded ECU..? new to mazdas soo im clueless..before i put the cat on it was running super rich, now its dangerously lean....>
Also, turboed rotaries are supposed to run rich. The stock FD runs 10:1 or less. You should be shooting for about 11:1 when modding.
#7
may i ask how you know you are running leaner now? did you check the plugs or is this just a guess? How much boost are you seeing? And describe what you mean by it idlign funny. Even with those mods, it should idle just fine w/o an upgraded ecu. the idle fuel map doesn't need to be changed when you add mods.
Danny
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