grim~

iTrader: (1)

What is all needed to be done in ecuflash so that my car will read the same AFR value i input in my fuel maps? it seems to be a little off,idk if thats normal or if i have something wrong like injector scaling or MAF scaling. thanks.

evo8426

iTrader: (27)

You can switch to speed density and it will be easy to match, but on maf my fuel map was never close to actual afr.

grim~

iTrader: (1)

yeah i plan on switching to SD soon,just wanna get a good MAF tune on here for now.

211Ratsbud

iTrader: (1)

MAF makes AFR numbers matching fuel mapping a lot trickier than SD. Infact even on SD if you match your numbers at 11.5 theres no guarantee that it will be accurate to make your fuel map 10.5 and recieve a 10.5. This serves no functional purpose in MAF, and the only thing it does in SD is makes it a little more visual to work with, but then your VE table is!!!! lol.. dont get preoccupied with making them match in MAF is what Im getting at. If you want to switch to SD and tune VE accordingly that makes sense however.

Boosted Tuning

iTrader: (12)

Dont worry about having the number in the fuel map, match your actual AFR. Just use the numbers as arbitrary numbers, higher means leaner and lower mean richer.

You can try to use MAF comp to make them match, but its time consuming and not worth it and sometimes you cant get it to match everywhere.

Raptord

iTrader: (10)

This. I played with MAF comp a while ago to get the map numbers closer to the real numbers, they`re pretty close now but not always exact. Good enough for me.

catman78

iTrader: (15)

bumping this

For SD

If my AFR map = 11.0 and logged AFR's are 13, then adjust RPM VE(up) in range OR lower values in Fuel Map to get them closer?

thanks

dolphin888

In my opinion you should adjust RPM VE.
Are you using 2d SD?

catman78

iTrader: (15)

yes, 2d.

My lean area is 2500k - 4500k, After 4500k the numbers are a bit closer
Seems like I will need to add quite a bit to bring it down.
Not sure how smooth the transition will be from <2500k.

dolphin888

Lean spool is on or off?

catman78

iTrader: (15)

off

dolphin888

If MAP VE is around 1:1, LS is off, you should increase RPM VE (assuming everything else is OK).

catman78

iTrader: (15)

I did not do the initial SD tune so I did not touch MAP VE

Here's what I have seems close to 1:1

13.4376 12
25.6536 24
37.8696 35
50.0856 47
74.5176 73
116.052 114
145.370 144
415.344 413

Current RPM VE

500 78
1000 79
1250 85
1500 90
2000 98
2500 104
3000 107
3500 107
4000 107
4500 106
5000 105
5500 105
.
.
.

My concern was having too much of an increase, say bumping up
3k-4.5k to 109

Not sure if surrounding areas need to be "smoothed"

BTW
thanks for your help, appreciate it

dolphin888

I start tuning SD from MAP VE always... There are no radical changes from base setup, it might be slightly different than 1:1.
RPM VE map is very individual, but in my own car there is 120+ VE at higher RPM range (3500-8000rpm).

catman78

iTrader: (15)

ok thanks, will try ramping up in am