Well, I've decided that I'm going to try and learn to tune. Figure that it's a good skill to have, and will hopefully save me some $$$ in the process (unless I blow up my engine). I've read the "How to tune an Evo" thread, and it's great. But it still leaves me with things I just don't get yet.
So, I've got a few questions. First things, I've got EcuFlash, EvoScan, and the Tactrix cable. I should be getting a wideband in the next few days or so. I've done some logging, just to test out the software. I've also gotten my stock ROM from EcuFlash. So my first question is, and a kind of embarrassing one, when you get the logs that save from EvoScan, what do you do with them exactly? I've looked at the graphs and whatnot that you can get. Do you look for things in there, and then change the values in the stock ROM in EcuFlash? I'm totally lost on this, and pretty embarrassed to ask. But if I don't ask, I'll never know.
Next question. When I do figure out what to do with the logs, how do you know what numbers to change? I mean, I know you can't make the A/F ratio the same number all across the board. But do you look at the logs, then look at the RPMS and adjust accordingly? This is my big question. How you know what numbers to change, and what to change them to. Not just A/F, but all the injector stuff, timing, etc.
If you read this, and think "Man, what an idiot" I'll understand haha. But if you can help me at all, I'd really appreciate it. I've rebuilt engines before, and I learned how to do that on my own, so I figure I could learn to tune on my own.

 

First you should of posted this in the ECUFlash fourms you will get all the help you need there. If I were you I would repost this there. Make sure you always have a ROM backup before you do anything. If you don't understand the Evoscan logs post them and people can help you analyze your car and make suggestions. Make sure you copy down your immobilizer code and save it some where and don't give it to anyone.

 

Install your wideband and get a reputable tuner to tune it for you via email. This way you can compare your logs to the changes your tuner makes and get a feel for what is going on. This is the safest way to go about learning how to tune.

 

If you'd like me to tune your car and explain what im doing and why i dont mind. Some people like explanations others just want it done. Shoot me a PM and we'll figure something out. By the time were finished youll have a pretty good understanding of whats going on.

Cheers!

 

Thanks you guys. I've been debating on getting an email tune. I'll def post this in the other forum too. And 4WS I'll def keep you in mind, thanks!