General fuel trims aren't changing? Why

[SBstar]

Alright I've been working on tuning my car for a couple weeks now and I've been slowly fixing the little problems one after another. What's happening is when I change the low throttle settings on my afc, nothing changes on the pocketlogger? The fuel trims are staying at 118%. I can feel and hear the car change when I dial down or up the afc but nothing changes as far as the logger says. I know I have some boost leaks that i"m working on fixing and I know that can throw of readings but would it cause it to not even change at all? Also when I first plugged in the logger it gave me a diagnostic code for my mas, now that code has dissapeared and I haven't even changed anything other then unplug and replug in the maf. I plan on replacing it asap anyways with a hacked maf just in case there is still something wrong with it. Any help would be appreciated,
mods are 550cc injectors, what I think is a hacked maf and will definately be as of tuesday, 2.5 inch o2 eliminator turboback exhaust, Big 16G turbo (running 5-6 psi probably due to boost leaks). Thanks

 

[blackGSX2g]

I don't have any experience with a hacked MAF, but if you are way too rich or way too lean, your ECU will stop cycling the o2 sensor which would stop the o2 fuel trim from changing. Is there any way you can just swap someone's stock MAF for a few runs to see if that helps it?

I had that problem too when the tuning on my MAFT was way out of whack. I sat at idle and messed with it until it brought the fuel trims cycling again, then adjusted it to around 0% (100% on 1g's).

 

[SBstar]

There isn't another 1G around here for 50 miles haha. At least no one that I know. I'm going to try hooking up another maf and hopefully I'll see some results. I know the car is probably running very rich due to the 550 injectors and little or no tuning (at least correct tuning). I've been trying to get things to work but to little or no avail.

The other day while driving they did change for a while, the mid fuel trim went down to about 110% and the high went down to 108% while the low stayed at 118%, now they're all back to 118% and no matter if I turn the dials to richen or lean out they aren't changing anymore. Once I plug in the new maf and get the boost leaks fixed I'll post more.