my car hickups when i get on it
and it only happens in 4th
ill go through the gears winding each gear out
then 4th gear at 5,000 rpm it hickups
wtf!!!
i got the boost controller
hooked up to the wast gate
then to the turbo nipple
pushing 20 psi

 

I assume you have a boost gauge. Does it show anything abnormal when it hiccups? What kind of tuning device do you use? Does it throw a CEL?

 

never watched the boost guage when it does it
no tuning device
got check engine

 

go get the code pulled and see what it is

 

Go to your local autozone/advance auto/pep boys and have them pull the code for free. If you want to see what your boost is doing that might help too. I know you're going pretty fast at 5k in 4th so it's hard to not watch the road but if you feel comfortable that may help diagnose the problem.

I highly suggest getting the code pulled though, more than likely that will answer all your questions. I take it the code appeared when the hiccup occured and not significantly before or after?

 

try hooking up the mbc to the bov??

 

Not a great idea. The boost controller needs a pressure source before the throttle body, and ideally before the intercooler. The bov line comes off the intake manifold. It might work, but it won't work perfectly. You will also have more boost spiking before it settles if you hook it up that way. With the factory turbo, the should be a line off the lower IC pipe and and line off the wastegate. Those connect to each other and then T off to the boost solenoid. I don't know how your particular boost controller works but it still needs to be hooked up to the wastegate/LIC pipe to work correctly.

 

sounds like you may be hitting boost cut.. try turning down the boost and see if it still happens

 

sound slike a boost cut. Do you have injectors yet? cuz if you get on it under load, you will hit fuel/boost cut without injectors.

 

Can also be a fouled spark plug. Fouled plugs will cause you to misfire and sometimes throw the random misfire code.

 

got the code p0234
turbo wast gate system falt

 

turn the boost controller down 2 psi, clear the code and try again. You're over bosting.

 

im only boosting 20 psi

 

Doesn't matter the boost level... its all about the Karman reading iirc the factory will cut boost around 1750hz ... if the air is cooler and more dense the boost cut level lowers.

 

might be a misfire...might be hittin boost cut. As Doug said its all about the Karman reading. Have you had some sort of reflash done? If no - send your ecu out and get the boost cut removed by a reputable flash tuner