well i have been having this boost problem for awhile now. i dont know what it could be. it could be so many things so please help out if yall can
Sorry this will be long =( but please bare with me
im at bpu
fmic,intake,exhuast,ebc,bcc,bov,dp. i have a greddy profec b 2 boost controller.
my settings are
gain 19 percent at .79 bar
another thing is that no matter how i play with the setting it doesn't seem to change my boost factor but it changes my blow off valve noise level. i can put 0 gain and 10 kpa and it will still spike.
my problem let say im crusing on the freeway. like at 70ish or so. if i wot it. at like 5000rpm my boost will go from 1 bar to 1.5 bar and backfire like crazy. i see black smoke shooting out of my exhuast. the thing is when i dont wot it. lets say step down half way my boost will go up to 1 bar but if i step on the pedel alittle harder the boost will go past 1 bar. i have an auto so basicly my car will shift like at 5400 so im not making any power. sometimes when im driving local at 20 and i try wot it. i lose boost like from .7 bar it will go down to .3 bar then when it shifts then my turbo build boost up to 1 bar then spike and backfire like crazy.
another thing is that sometimes on the freeway when i wot it. it wont backfire but it wont boost. my gauge will show me losing boost but i will be able to redline.
does anyone think it could be a inproper boost controller installtion?
my air fuel gauge shows that im running very rich. can bad plugs also cause this problem? does anyone know what are the recommoned gap for BPU supra? im not sure but is it .32?
Once again im so sorry that this is very long and thank for your time.
please help =)
i been having this problem for a nearly 6 month now and i cant figure out what could be the problem. i dont hear no death wine from the turbo. im just running very rich
anything else i can do to lean it out?
new 02 senor?
i had a shop out in a apexi safc 2 yesterday but i have no idea how to tune it. so anyway anyone think they can help me hold boost? and run little leaner?
once again sorry =(

First what is a wot??? Next its your greddy profec b 2 boost controller. Its not hook up right. Been there before had some junky thought he knew what he was doing. I fixed it myself. you should too. Where are you from Internet Explorer???

WOT means "wide open throttle"

im from 510 bay area california
can u tell me how u install your boost controller?
please e-mail it to
sunnydshine@comcast.net
thanks!