tuning issues with 5sfte, having trouble keeping a stead a/f Options

[D_Dawg]

So i have a 5sfte and im using a NEO to tune with 460cc injectors. My problem is that sometimes the car runs fine and the wideband reads in the 11's. but randomly the car with run way too high of an a/f ratio. even at idle sometimes i need to take fuel out to get an 11 and sometimes i have to dump fuel in. what could be causing this random a/f issue. my IAT sensor hasnt yet been put into the piping but i doubt it can make that huge a difference, other than that i dont know.

[lagos]

By under load do you mean wide open throttle?

???

i mean upwards of 30 percent throttle or so

Then the reason why you can't get the car into the 11afr is because thats not where it should be!

Here is the basic idea:
At warm idle, the car should be at 14-15 afr.
During part throttle driving, the car should also be at 14-15 afr.

11 afr should be your target ONLY when you have your foot to the floor and are doing a full throttle 3rd or 4th gear pull under boost. Not at idle, cruise or part throttle driving.