Got a q. SR20det 550cc injectors, n60 maf, safc2,9psi.

I just hooked up my wide band about a hour ago hoping to try to see how the car was running. I got it street tuned on a good number which makes me happy, but there is a issue.

For some reason at light throttle 10-30 percent it can be at a 14.3 a/f ratio, and out of no where it will go super lean then back to a normal afr. All power is lost when it happens. Also, sitting stationary at very light throttle the ENGINE will start to surge. Now I've have check and replaced a few things so I know its not those. ECU throws no codes also

MAF-checked and replaced
TPS-checked and replaced
CTS-Replaced
Vacuum leaks-none from any line
SAFC2 wiring-checked all good
IACV-checked
BOV-checked(I took it off and capped it off to see if it would still do it)

I am lost here, anyone have the same issue ever? If so please tell me your solutions or any suggestions.

Thanx fellas

 

Found your problem
<-----rep button is that way and down

 

how to properly set up your SAFC1/2

 

hahaha lol ^