i just swapped my motor and just need to get a "decent" tune with the afc. i have lo thr set at -24 across the board and on hi its -40. a problem i'm having is boost quit at 4000rpms. is that because i'm not giving it enough fuel? or is that a different problem?

I wouldnt touch anything until you get a wideband. Leave everything at 0. Right now your gonna blow your motor from the lack of fuel if your motor is stock

i gotta a wideband it always around 14-15 even in hi throttle. i think i know what i need to do

14-15 in high throttle is bad. Your goal should be in the high 11's to mid 12's under boost.

Advice:

Sell it!

What are your mods? Why are you using the NEO? I hated it and realized what a waste of money it was after a got it.

s15 turbo, 264 cam, jwt cam gears, stock bottom end was rebuilt. z32 maf, 785 cc inj. some other stuff. what did you hate about it exactly? so i guess my hi settings should be in the -30's

Get a real tune from at least JWT or enthalpy. You'll be much happier and won't be using a piggy back. I sold mine for 250. For another 150 you'll have a tune!Ask everyone here if you should use the neo or get a tuned ecu and see what they say.

Edit- For the sake of your motor's life
Modified by MrSoutherland at 3:13 PM 10/13/2009

i guess i could use the calum ecu i got but it gave me problems before. i'm still having issues not boosting above 4000rpms

No, JWT or enthalpy!Not some other crap.

update i got it tuned pretty damn good with the afc. boost is okay now too. stupid mechanic tinkered with my boost controller and was maxing out my boost so it wasn't giving it enough spark.