major problems, swap profesionals help needed

[bluebirdboy]

im lost guys. i swapped an BB u12 into my nx 2000. everything went smoothly, and it runs. im using the jap o2 sensor, the ecu, and throttle positioning sensor. but im using my american wiring harness. and it is running rich as hell. it wont idle, its having boost blowback issues, and smokes bad. I just bought an Apexi S-afc 2 and hooked it up, and its not even reading any thing on the throttle moniter. i thought about taking it to my local tuner shop and having them dyno and tune my engine using the afc. but i dont think this will fix my problems, does anyone have any advice, tips, things i might try, if you need any other information let me know. im in a bad situation right now and will apreciate any feed back.

[bluebirdboy]

well i just found out from the tuning shop today that my o2 sensor is screwed and its throwing maf and TPS codes. which they tell me means that i need to put the japanese wiring harness on the car instead of the american one. does anyone know where i could get a o2 sensor for a jap motor

[Creagach]

i believe you need a different mass air flow meter

[In2Deep]

if you use all american sensors/wiring harness and a cobra maf, then get an ecu tuned by jwt for the specific parts you have, the BB will run properly. go to sr20forum.com and look under the turbo section or search and all your questions will be answered.