Need help!

[Smitty's MSP]

I think I might have a similar problem, we just put in the Forge wga and bpv, and finally got a vac/boost on it too... at wot the needle shakes violently around 0. When I say violently, I mean that you almost can't hear the turbo spooling up. Checked the gauge and it seems fine, think there is a boost leak for this as well? Or am I just doing something wrong?

 

[Nevermore]

check your BOV connections...thats what mine was lol

 

[pbarton14]

UPDATE: i dont have a vaacum tester here at my house so i just sucked and the hose connected to the WG and nothing happened like the air was just coming out as fast as i could suck. i tried to blow air into it as well and same thing, it didnt hoold any sort of air, i tried doing this with the car on and off and got the same stuff.
also , i did that to the stock BPV and it seemed like it stuck in the small chamber , because when i sucked on the vacum line going to the bpv it sounded like it moved slow , and just seems like maybe my bpv is sticking somewhere on the inside. could this lead to my power loss?

 

[hornsfan10609]

Your WG is bad, replace it.

 

[pbarton14]

if it was my wastegat ewouldnt i have boost spike or wouldnt my boost guage be showing less than 7.5? and idk how it could be a boost leak and my boost stays steady and doesnt spike at all

 

[b6gtxawd]

if its not leaking that bad your turbo will be able to make up for the leak im pretty sure. someone correct me if i am wrong.

 

[b6gtxawd]

although i know with my car sometimes my boost will hold strong and sometimes it will die down to 4.5 psi. im blaming that on forge wastegates being poo poo

 

[pbarton14]

Well when I install my modded IM , im putting colder plugs in because it missfires under full boost now too I the power struggle has went away and is now replaced with missfires lol fml

 

[b6gtxawd]

sometimes i feel i should have bought an srt4.. if the msp didnt look so good i would have lit it on fire by now

 

[pbarton14]

Replaced me wastegate and still have the power struggle . Thinking it might be a faulty coil pack? I have no idea

 

[f1yen]

I think I might have this problem too, does it only feel like it is wicked fast before it is warm?

I think it has to do with the timing. In my car take for instance the motor not totally warm, but getting there. pull from 3rd gear, low revs , say 2.5k up. at WOT. the car will pull like a bat outta hell, then 10 seconds later same gear, fully warm, 2.5k and up, WOT, and the car turbo winds up but just the car will not go fast. It feels like the car is retarding the timing so much that it will not accelerate. but if I wait untill 4k rpm, and WOT it, then no problems, and fast.

aka sometime when i am getting on the freeway, if im in 3rd or 4th and i put my foot into the throttle, I go over 0psi, and the ecu starts pulling ignition so much that I cannot accelerate much (if at all), so I will pull my foot off a bit and keep it out of boost...

Try that 3rd gear pull example I stated, and see if it applies. I am thinking about doing the flash, because i believe that is the problem...
It might have to do with open/closed loop control? does anyone know how to keep the car in open loop?

 

[pbarton14]

Im not sure but that might make sense , one thing I did notice is that once its warm sometimes I rev it up past 5k and then put it back in gear and it'll be fast again , see I have a ssafc so I don't know how it could be the ecu