AIR / FUEL ratio...issue..

[willg54]

14.7 would be stoichiometric. under that would be rich, over that would be lean.

[prj]

Uhm, it would be nice if you would take some logs.
Not write what numbers you see...

Also, comparing these values between cars is pretty useless. It depends on many things - IAT, fuel quality, coolant temp to name a few.

[rs200]

hy.
yesterday I finally get wide band lambda sensor in my car..

and I think that running lean ..
at idle (hot engine) 14.10-14.80..
normal drive 16.05-14.50 , than slowly accelerating from 2k - 4.5k rpm (low boost 0.1-0.4bar) and values where 14.80-13.09.
at WOT ,full boost ,first 15.40 ,13.30 , and in one moment at 6000rpm 12.30..
I think that is lean..
what can cause that problem , and how to fix that..


can you please tell us how is on your car, that I can compare with my car..


thanks