hey guys,

I'm wondering if any of you all maybe able to help me out with an issue that i've been experiencing ever since I got my car running. I've dealt with it so far , however it's starting to get annoying and i just want the damn thing fixed.

I'm having a sputtering issue with my 1jz cressida (jzx81 auto set) that i'm not too sure what could be causing it. The sputter only happens when the car is cold between 2800-3200rpms. It completely goes away when it is warmed up though.

I'm thinking CTS, however I have searched the crap out of 1jz cts and I can't find anywhere that mentions what replacement to use and where is the easiest place to get one or part number. I'm not too sure that is even the cause of the issue.

I have replaced all spark plugs with bkr6e's at .8 gap. Shieled all coilpacks with heatshrink. Replaced dud jzx81 ecu with jzx90 ecu.

mods: stock intake with cone filter, open downpipe 3.25". stock boost. not throwing any codes

Any help is greatly appreciated. Thanks!

-Jaime