datalog

It is 2025 and I still have not seen any evidence to support some of the claims that I have heard about how S (versus D) behaves on the shifter when using drive modes such as Track and Drag. Just this past week I watched some YouTube clips and two separate people said the following about how to...

This is on a gen3 coyote and only has a few bolt ons and a tune. The car goes 20% lean at idle and also runs lean while driving, we noticed this after switching from flex to 93. The tank was drained before switching and we have smoke tested the car 3 times at different shops and no one could...

Hey all, just trying to learn and understand this. So I installed long tube headers, and used an extension on the passenger side, but not on the driver side. After a quick datalog, I noticed a huge difference of bank 1 and 2 measured AFR. One of them seems very wrong. Can anyone advise as to...

Hello, the other day i was doing some pulls to check the fuel quality and of course i was data logging, right around 6200 RPMS I’ve noticed that my short term fuel trims where getting higher than 1.5 till it peaked 1.12, I’m still new to reading logs and all but I think it’s getting lean and...

Hi everyone, I'm currently trying to complete my first logs for tuneplus and am running into an annoying problem. My OAR keeps dropping at random and I can't seem to get it to stay at -1.0. I've never tuned a car before but the instructions were pretty clear, just drive around for about 40...