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Its just odd that i'm having so many problems getting this stuff to work right lol. I went over the inputs and graph settings on the scanner multiple times and couldn't see why they wouldn't work. Before the scanner settings got all messed up it was running rich at operating temps for the short term fuel trims, now they are lean. VE was never messed with from the stock table because the idle trims graphs would not populate any data in them. The only changes i made on the engine side was for injector data and from the previous idle tuning setup to get the base running airflow somewhat dialed in to hold a good idle. Thanks for that info! Right now i just have the tune loaded that is a modified stock table but maf and speed density settings are set as stock. Heres a list of generalized target A/F ratios Once you hit the cells that make sense you can smooth all around them to adjust the nearby areas that you do not have good logged data for. I do this by simply comparing the logged data with the commanded A/F ratio from the scanner at each specific logged cell. Then you simply sit at kitchen table, review logs, and adjust the VE table so that the commanded A/F values match reality. No big jumps except near idle sometimes and just off idle sometimes. The VE table should flow smoothly like this When finished if you want closed loop you can re-enable but I never use closed loop or narrowbands because 14.7:1 is not a desirable a/f ratio for any situation.īefore doing any VE map tuning make sure the VE values make sense and that the injector size setup and torque predictions / airflow predictions make sense. I recommend avoid closed loop all together and focus on tuning the engine manually, fully. You should wind up with several different logs of the same data, showing different trends for different situations. For example Tps > 5% to eliminate all situations with less than 5% throttle from the data. Make sure wideband gauge matches scanner recorded values.Īdjust the filters so the same log gives multiple view points. Setup wideband input so it will log like this Sorry for the long rant just trying to explain everything that's happened since the beginning Thought it was the old laptop I previously used, but it does the same thing with the new laptop. You have to either move the cable around or unplug and plug it back in to write a tune. The USB cable hasn't worked right out of the box. Or I could have been sold defective hardware since the beginning. Tried searching so I could fix it, but nothing seemed to work.
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The only thing I found on this site that worked somewhat was setting the base idle airflow, but it wouldn't log idle trims in the graph so I haven't had a true base idle tune set up for 2 years. Since I tried fixing and changing stuff around in the scanner to work like they had, it's all jacked up now and doesn't work right so I'm at a dead end so to speak.
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Even tried Goat Ropes methods and it would run decent, but would not populate the graph in the scanner like it's supposed to. One person says do this and that and another person says something totally different. All the info in the stickies is outdated and does not work with the newer 4.1 software versions. 2020 but I can't find any updated editor or scanner instructions on how to set up speed density tuning, maf tuning or base running airflow tuning that actually works.