running lean, at idle and driving Options

[treydawgs4g63T]

Ok guys, went to mitsu's house the other day to have borrow his logger since mine broke! Damn it!!!!

First:

my CEL was because of my knock sensor, dont know whats wrong with it because its brand new ( from Orielly ) but somethings up.

Second:

my idle fuel trim was well over 100% and I dont really understand why. I know that its got a range of like 80-140 but i dont really want it aiming more towards the lean side! Why is this occuring? I have a walbro 255 high pressure and an Aeromotive AFPR installed w/ stock injectors so I should be running rich at all times, correct?

Third:

every now and then when im driving it cuts out, like its hitting fuel cut. This only happens when it starts to incounter boost though. Even when im not romping on it.

We did the injector check just to make sure that they are all functioning and they all seemed to be working.

I am stumped and pissed at the same time. I am only running 9 psi because my waste gate spring needs upgraded and Im still having fuel problems! BS!!!!

Please help me out guys!!!

[treydawgs4g63T]

anyone????

[ncgalant]

If your fuel trims aren't pegged, then I wouldn't worry to much about it. In general you want your trims to all be between 75-125, but in the short term as long as your O2 cycles then the ECU is taking care of things.

I'd be MUCH more worried about the knock sensor issue. With it not functioning the ECU gives static timing advance at a VERY low level. Your car is going to run like crap all of the time until you get that taken care of.