Have any of you adjusted these to see what they do?
fuel_trim_cells.jpg
Have any of you adjusted these to see what they do?
fuel_trim_cells.jpg
I don't have those on mine. What application is the tune from?Originally Posted by spoolboy
I have a GPEC2A controller (2015 challenger) and I have those tables...never messed with them though.
Last edited by Homer; 02-27-2019 at 11:20 AM.
I just opened your tune, and I see them in there, Matt. Look under [Engine] [Fuel] [Oxygen Sensors] PRatio boundaries and RPM boundaries.
Seems like a possible way to adjust stoich at various break points, but not sure.
Seems handy for fixing a rich idle with a big cam or adding a little fuel around peak torque, etc.
Last edited by spoolboy; 02-27-2019 at 09:27 AM.
Mattechperf,
If you ever want to find a table, go to the top left EDIT>NAVIGATOR (or Cntrl+N) and type in either the name of the table or the number. It will pull it up if it's available in that tune file.
Pretty handy actually since it seems different tunes have stuff in different places.
I might be talking out of my arse, but don't those breakpoints define the LTFT learn points?
^^^ Bingo. They are useful when you are seeing a stumble or misfueling that your trims aren't reacting to, usually means you are near a breakpoint and should move it a little so its into a new trim area.
Well, I'm learning what a new table does every few days. At this rate I should be able to tune something by 2024! LOL
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