yea I think when I'm all done and have my boost controller I will. Since I didn't take screen shots this time, next time I will.

 

The gemu will not learn over partial throttle if you don't go over the stock ecu checksum - I have increased mpg and has stayed this way. Though you are right to think it would get learnt over initially keeping in mind ltft and stft's adjustment during partial throttle.

Also, you will need to monitor ltft and stft's which are not applied/learnt in wot.

The biggest problem is the stock ecu is in the loop and it babysits (however this can be a good thing in a way) you eg stock knock sensor, and the biggest problem imo is adjustment ranges/scope.

It's never going to be as good as a standalone but imo its pretty good ;


It seems however I've tuned mine differently to you.

 

So, since there seem to be at least two people in here that know what they're doing... how did you guys get the AFRs to stay where they need to be during idle and partial throttle? I got my EMU tuned, and my AFRs during WOT are right where I want them to be (mid 11s), but I've thrown a "system too rich" CEL a few times, especially when I'm idling for a long time or at part throttle cruising on the highway. When I was getting tuned, my idle AFRs were in the 13s, a little richer than stock, but not too rich. Is there some sort of easy way to lean out the idle and part throttle without the S2000's computer "relearning" and richening up the mixture over time? I want to keep my WOT AFR where it is, but I want my idle AFR to be closer to 14 if I can, and I want it to stay there.

 

it is very easy to have the EMU control boost.

I had mine do it.

I wrote a thread on it

 

https://www.s2ki.com/s2000/topic/726...#entry16989413

 

at idle with the greddy you shouldn't have any adjustments made. The greddy should only be tuned for when you go into boost. The stock ecu should be doing everything at idle. I think the best way to see if your tuner for some reason is trying to put fuel at idle is to post your map. Hook up a printer cable to your greddy. Download the software onto a laptop and connect it to the emanage. And then take pictures of your map.

 

very nice write up on the controller.. I was going to buy a real controller but your way is so cheap I'll probully do that

 

I will be the first to admit that I don't know a lot about tuning, but I'm trying to think of this logically. Here's my thinking (tell me if it is flawed). When you add larger injectors and an upgraded fuel pump as you do with the Greddy system, or pretty much any turbo, there's more fuel flowing. Does this not happen during idle as well? Can the stock computer control the larger injectors and "tell" them to only apply enough fuel to keep the car at the desired 14.7 ratio?

There is some reason my car keeps tripping the "too rich" CEL, and this did not happen until I installed the turbo and injectors, so I don't think it was a coincidence. I've also got a fuel smell in my oil (not sure if this is normal with turbo cars, but I changed the oil and haven't run the car since to be on the safe side). Usually rich just means you're getting robbed of power, but too rich can cause fuel wash and destroy your motor. I just want to be safe.

My laptop will not connect to my emanage even though the software has been downloaded, but I will get a print-out of my map made when I go back to my tuner on Monday.

 

The stock o2 sensor will always fluctuate by design around 14.7 it will constantly bump up and down in voltage by design to find stoich.

You can alter things by either changing injector dead time etc (you need to get this correct) and you can also set the idling feature - but this is more for when your running bigger injectors, the greddy does a calculation and adjusts based on your set parameters for injector settings and sends back to the stock ECU. The stock ECU is not capable of running bigger injectors and yes bigger injectors flow more.

So providing you have set the parameters correct you should have no issues with idling nor a too rich cel code.

You are correct, but its called bore wash.

 

Hey side note guys- I am not sure where to download the E-manage Ult software on to my laptop. My E-manage didn't come with a disc. Any suggestions? Thanks