WOT Tuning

[Slow73]

Trying to tune my WOT AFR on a race car....im commanding 12.80 and seeing AFRs in the low 13s throughout my run. Is there an formula I can use to figure out how much to richen my VE table to get to my target?

[swingtan]

try here...

http://forum.efilive.com/showthread.php?t=13152

[Slow73]

I didnt read all of the pages as his 1st paragraph mentions tuning via the MAF. Im running OLSD.

[joecar]

Hi Slow73,

BEN = measured_AFR / commanded_AFR

Using your data as an example: BEN = 13.2 / 12.8 = 1.031

You multiply those cells in the VE table by 1.031...

i.e. the cells at the MAP vs RPM where you commanded 12.8 and measured 13.2.

[Slow73]

It is disabled....thanks Joe...ill give that a try.

[joecar]

It is disabled....
I deleted my post about disabling B4206, I thought about it and it's not relevant in this case. :doh2: