WebMay 29, 2024 · AFR Learn is a long term trim. This is adjusted by the Trim, if trims are occurring in a certain area of RPM/MAP for a long enough period. The AFR Learn will … WebJun 23, 2024 · one of the recent tests I have been doing is restricting the AFR trim min/max to 10% (default is 50%) and then increasing both the AFR trim (loop) rate and AFR Learn rate. So the trim is restricted in how much it can add or remove, but the trim reacts faster to O2 readings, and learn is faster to change from the trim adjustments.
Fitech Lean Issues NastyZ28.com
WebMar 11, 2016 · The first concern with an EFI conversion is whether it will actually be a direct replacement for the carburetor. Of course, things like fuel pressure, wide band O2 sensor, and an ECU are part of the conversion, but FiTech takes care of these items in its kits. There is additional wiring, but that, too, is part of the kit and all wiring is ... WebApr 25, 2024 · The one weird thing is that the Fuel Learn was consistently very negative (in the 20's) and whenever I would stab the throttle and do some gear pulls, I would be getting down to the mid tens in AFR. I was actually at a track day and I called Fitech, they told me to actually reduce the cubic inches size of the motor, so the computer would be ... northouse ulm
FITech For future tech talents
WebMay 2, 2024 · Then that data is used to adjust the base table, which is the AFR Learn. For example a 7.4 AFR trim means 7.4% more fuel has been added above the cell in the table. A -13.5 AFR Learn means 13.5% less fuel has been entered into the table for that cell. Ideally after the system has had time to learn your trims should stay within +/-10. Another ... WebAug 6, 2016 · This is a self learn system, not limited like an OEM. If it reads 20* less and richens the mixture the O2 sensor will read rich and the computer will adjust it lean for the AFR to what you have set. Then it's going to remember at that temp a certain injection duration is required to maintain the correct AFR WebMay 4, 2024 · Hi GuysDid a firmware update yesterday (thanks Austin) and now i have a very jumping idle, and AFR learn is maxing out negative?Cam choice 2Adjusted AFR idle … AFR Learn maxing out negative - Page 2 - AFR Learn maxing out negative - Page 2 - Electronic fuel injection tuning for automotive applications. northouse p leadership