wideband and fuel trims

[GalantGst]

i have a wideband and im tuned for around 14-15 cruising and 11 under boost.

my fuel trims are at 139.9 percent thou i dont understand why.

I have the narrow band out put hooked up to the ecu and the ecu is def getting o2 voltages.

or u think i should just come more fuel till the fuel trims stabalize between 100%?

 

[Staytuned]

Your computer is always trying to keep itself around 14-15:1 at cruising speeds. You need to add some fuel to your low settings to bring it back to 100%. What are your settings at now?

 

[GalantGst]

i have a 2g maf and 550 cc injectors(stock pump)

its at -5 cruising and bosoting is + 8

 

[Staytuned]

139% is way too lean your computer is correcting it as best it can but you should richen it up. Follow this tuning guide and see what happens. Tuning guide for AFC

 

[GalantGst]

my question is at idle is the o2 supposed tobe stoick(14.7)
i had it at lean before now i have it to stoich and my fuel trims are good around 100-105