QUESTION RE: NUMBERS IN TABLE CELLS

[terpngator]

OK, sorry if this is a very basic, or dumb, question. Working hard to further my learning curve on TunerPro and tuning in general. So, can someone explain what the numbers, in the cells of this table, or any table for that matter, represent? Are they the result of a function? If so, what is used to get that number? When making changes to your tune, is this a table you would adjust?

Thanks

[steveo]

when the car is cold, before the oxygen sensor start working, this table is used to determine the air/fuel ratio. the numbers in the cells are the parts of air per part of fuel.

14.7:1 is ideal for normal gasoline, and a cold engine needs more fuel, hence the richer mixture as temperature goes down.

it's set a bit rich for safety.

would i adjust it? no, probably not.

if your maf table (or ve table, if you have no maf) is set up properly, the factory values are fine, and on a car with functional oxygen sensors, the table is only used for the first minute or two before the car warms up.

[steveo]

i did notice the description of that table in my XDF is both wrong and undescriptive, so im going to fix that.

[steveo]

have i told you to press F10 in tunerpro, so you have the item descriptions up while you're going through parameters?

[terpngator]

have i told you to press F10 in tunerpro, so you have the item descriptions up while you're going through parameters?

Steve, thanks for the explaination. So those numbers are actual, re: that 1st cell number (8.0) is 8.0/1 AFR, less units of air per fuel unit making that a rich mixture?

[steveo]

yeah, they are, but they're afr TARGETS. thats an important thing to understand while tuning this stuff. how accurate those numbers end up being in the real world depends on how accurate the rest of your calibration are; maf table, injector constant, etc.

as soon as closed loop is entered this table is ignored

[terpngator]

GOT IT!! THANKS

[Fast355]

OK, sorry if this is a very basic, or dumb, question. Working hard to further my learning curve on TunerPro and tuning in general. So, can someone explain what the numbers, in the cells of this table, or any table for that matter, represent? Are they the result of a function? If so, what is used to get that number? When making changes to your tune, is this a table you would adjust?

Thanks

This image reminds me of how much I hate things in TunerPro being upside down and just plain backwards now! The table is inverted from the way I like to look at it. That is colder temps at the bottem and warmer on the top.

[delcowizzid]

goto preferences and click on reverse rows or colomns walla up the right way