z32 maf problem

[nicku]

Hey guys...
my setup is redtop, s15 turbo, nismo 555 injectors, walbro fuel pump, safc2, and plx wideband, and now z32 maf and my car is at stock boost.
I just installed my z32 maf today. and the car started acting very weird.
First of all, the car became lean. My idle was 14.6-15.2 before. And now it became 16-17. So I used safc to turn up the fuel a little bit. And it ran right for like 10 minutes. and then after that, it became really rich.
so I turned down the fuel again. And it became lean. Its just keep doing this back and forth. Until now, I dont know what's going on. When I turn up the fuel, the wideband shows the car getting leanner and leanner and died.
My question is if at stock boost, the z32 maf will make the car lean that much?

I tried to unplugged the maf, and the car went dead. So that means the maf IS working right?

what could be the problems???