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Originally Posted by ELorinD86
Thanks I've been reading all them over and over, to the point where I get overwhelmed and not sure where to start. The thing I don't quite get was reading about the vgi maf scaling tool as far as using it. Sorry I know it's probably been asked a million times.
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Just focus on the MAF scaling for now and once you understand that then move to the next thing. Take some logs under both closed loop and WOT open loop operation to plug in the vgi tool. Play with that a bit, figure it out. Try to get the AFR in line with the commanded afrs logged in OL and fuel trims nice and tight (+-3~5% LTFTs or less). After you get that down then you can focus on dialing the ignition advance to reduce knock corrections.
Nobody was born knowing all this stuff. Everyone starts form somewhere. Just be glad this information is easily accessible. Make conservative changes then observe what happens. That's how you will learn. Otherwise you're better off paying someone to do it for you. You werent born knowing 2+2 = 4. Know what I mean? lol