Dyesuperman
10+ Year Contributor
- 523
- 21
- Mar 10, 2009
-
Minot,
North_Dakota
I recently bought a GSX with the following mods:
Turbonetics 50 trim
Speed Density
HKS 272 Cams
Stock Block
Boost set to 20psi
ECMLINK V3
255 walbro
Afpr
Running on E85 with 1050cc injectors
I think that would be everything relevant to this discussion. The wideband is about a foot away from the turbo outlet. I know there is an exhaust leak between the o2 housing and the turbo also. I believe I fixed an exhaust leak between the dp and o2 housing.
The issue I am having is that at idle it reads around 14.3-15.3 afr, cruising it reads about the same, but at WOT it goes extremely lean, around 16-17. I am not picking up any knock at all going this lean. It runs well besides that.
Now would the exhaust leak cause the wideband to read that lean? I haven't actually completed a full wot pull because every time the reading goes that lean I let off immediately.
Here is a random log while driving around town today, it may give an idea of something wrong (I am still a little unfamiliar with ecmlink)
Turbonetics 50 trim
Speed Density
HKS 272 Cams
Stock Block
Boost set to 20psi
ECMLINK V3
255 walbro
Afpr
Running on E85 with 1050cc injectors
I think that would be everything relevant to this discussion. The wideband is about a foot away from the turbo outlet. I know there is an exhaust leak between the o2 housing and the turbo also. I believe I fixed an exhaust leak between the dp and o2 housing.
The issue I am having is that at idle it reads around 14.3-15.3 afr, cruising it reads about the same, but at WOT it goes extremely lean, around 16-17. I am not picking up any knock at all going this lean. It runs well besides that.
Now would the exhaust leak cause the wideband to read that lean? I haven't actually completed a full wot pull because every time the reading goes that lean I let off immediately.
Here is a random log while driving around town today, it may give an idea of something wrong (I am still a little unfamiliar with ecmlink)