Ok so took the cover off my VTDA, and reset my boost controller so that its not doing anything at all. Now when I reach high rmps and about 17psi (spike) my engine studders (when I floor it only, if I ease on the gas no studdering). No CEL's are thrown, im gona try cleaning my MAF tomorrow and then I am going to try to change my plugs. Anyone have any other ideas. The filter is directly hooked up to the MAF housing, dunno if it needs to be down a bit, if that matters. Also I am running just the yellow spring in my Forge 007. Thanks guys!

 

Adjust your DV springs. sounds like you have the wrong tension in there now for the lower boost.

Is it like a sputtering sound when you ... (start to accelerate and stop prematurely and boost drops off)?

 

sounds like either running rich, missfires, or dv opening. The spring should be fine, i would give it a day or so to see if it adapts since you said there was no cel. If the problem persist, than its most likely something from above and there should be a code stored regaurdless of no cel

 

No its when I floor it, and I hit 17psi its like sphhhhtttt, sphhhhttt, sphhhhttt, (in which the power is real choppy) then drops down to 10psi real quick. But if I ease into the throttle at 17psi it will hold real hardat about90 percent throttle depressed, if I go the other 10percent then the above happens....[:@]

 

you might need to up the boost back up some to make the boost controoler do something, that also could be the problem.

 

pressure test your intake, always a good idea to do every now and then anyway

 

i get that sometimes too but the boost never drops its kinda jerky some times seems if i keep the onset valve closed on the boost machine it works better only does it when its cold outside too just in the high rpms dont really know the cause no misfires no cels no epc or anything stumped i always thought bad N75 and havnt replaced it yet so who knows

 

Nate no comment?

 

I dont know what to do, my new "control module" comes in on Tuesday, gona replace it and then scan for some codes.

 

I did, read my previous post