[Tor]

Originally Posted by Kodename47

If you're getting that FLKC every pul, you'll likely make more consistent power by getting rid of it.

Thanks, yes I will at some point when the LTFT settles, I know from experience that it will go slightly richer with this MAF scale.

I don't know if I should wait with the effort of adjusting the timing until it gets warmer? At the moment I have IATs of 5-15 degs C, I assume I will need to remove even more with more humane 20-25 degs, which is what I have on average through the year?

I'd also address the rich dip at 3500-4000RPM.

What speaks against touching it is that in OL, that MAF scale produces so consistent number that I know what it will learn before the itself ECU does. And once the LTFT settles they have very minute corrections (like +0.8 +1.2). And as long as it's in closed loop it doesn't matter anyway?

I did let the Vgi tool chew on my MAF scale but decided not to correct it. What it suggest is almost impossible to smooth out meaningfully. And it's right in the critical spot 2.5 to 3.2 volts that it want to have the MAF look like a rollercoaster. The reason I put it through the Vgi tool was because it was slightly lean on top (0.2 higher) after switching to stg 2 tune. But I decided just to add 2 percent above 3.2 volts instead, and I guess it will settle at 11.5 once it's finish adding LTFT (it's 11.7 during the pulls for Vdyn).

Any suggestions how to go about that?


By the way, one of the things I love about Wayno's new tunes is the lack of learning required. With the uniform injector ratio, what the learning does is just to move the whole MAF scale up or down a slight bit when the LFTF finishes learning. If the MAF is good it won't move much at all. I feel absolutely no difference in performance between a fresh flash and driving several hundred kilometers, because all it will do is move the whole MAF scale about 0.2 down.

Originally Posted by Vin

I'm running the same header and Wayno tune and I have exactly the same rich dip at 3500 rpm.

I went through a lot of my old logs and even the stg 1 tunes do it right at the same spot, just not quite as pronounced. Also the old tunes before the uniform injector ratios do it. I guess it has to do with the AVCS?