kaT ignition prob?

[isetkidsonfire]

I've got a kat with fmu, 7psi, rebuilt w/stock internals and super t70 turbo.

The problem im having is that it seems like the ignition cuts randomly here

lately. one occation the car acted like it had a rev limit of 2500 (knock sensor?)

it's normally more like a stutter. the turbo oil seals are leaking only under

vacuum it seems but im not sure (turbo is old). pulled codes from ecu and got

12, 105 ; mass air and egr which makes sense with no tune and no egr

connected. Resently changed out a cracked gas tank with a new one btw. Any suggestions?

[574-240sx]

Bad maf will cut out at 3K but I have had it happen a few hundred rpms sooner and later then that. Get a basic tune before you hurt something then trouble shoot from there.