hello, first my english is a litle bad, i am french canadien.
I turboed my accent 2006(lc2)
My stock list:

1.6L
turbo kkk03 set at 7psi
bov
intercooler
home made simple AFC(when boost occur computer see O2 sensor very lean an enrich mixture at aprox 12-13:1..it's work good)
home made return line
FMU 6:1 and FPR

i have probleme when boosting but not allways, the car hesitate or not give me the full power...is very strange...first, when a snap the trottle in the floor, i feel the power but after one or 2 second, the car buck 1 or 2 second and i don't feel the power after but boost is at 7psi, if i release the trottle for less boost 2-4 psi at max..i feel the power...

my problem occur whitout my home made cheap AFC(But the buckage is less strong with my cheap AFC) ... i think is probably my map read too much pressure and cut the fuel but i have read in this forum the stock ECU and Stock map do not cut fuel above 14.5psi of boost?!?!

Assumption :
1-Map cut fuel
2-I don'T have tried to run a colder sparkplug, i run my stock sparkplug...?!
3-Timming/compression to advanced/high

all helps is apreciated thanks...and very sorry for my limited english!

Sounds like you have a very interesting setup going on there.

I have a couple of questions:

1) Are you running high octane fuel?
2) Could the knock sensor be interfering?

The only other thing that I can think of right now is that perhaps your fueling does not respond quick enough to suddenly going to WOT...

Check your plugs to see if they are white looking, you might be going lean if you hit WOT too quickly.

This post has been edited by WeirdGermanAccent: Aug 8 2008, 09:45 AM

the best gaz in quebec city is only 91 octane...i tried 87,89 and 91 octane whitout noticable difference.

my odb2 reader not report knock, report only tps sensor not corespond with map sensor...it's normal...with little trottle i am able to go up to 7psi! i have make circuit for cheating ECM...when i am in boost, i will cheat my tps is at WOT...but i don'T have plugued the circuit for now...the weather is $#@$#@, rain days after days after days!

i will change my sparkplug tonight ...with colder plug and gapped a .028"..
if i am in low boost 1-2 psi and put the trottle a wot the A/f do not go lean, in boost my a/f is allways between 11.8 and 13.2...13.2 when quick slap...and go to rich 11.8 and stay here! but if i am in no boost and quick slap a wot..i have little lean spot...but...my problem occur allways when boost is more than 3-4 psi, feel power--»don'T feel, feel, don'T feel and stay with poor power...it's strange..if my coolder spark plug is not the solution, i will make an DIY fuel cut defender.

Solved! it's spark plug... bkr6e-11 gapped at 0.028"