Sputtering under boost/Throttle body seals ?

[talonawd4g63]

Hey guys bought this car about 2 weeks ago and starting fixing it up, All the aftermarket parts were already installed except the logger, and the 2g maf/pipe. I set the boost at 13 lbs till I get a chip burnt/injectors. The car was running fine for a week, I go to drive one morning and I cant boost past like 9-10 lbs of boost, If I drive the car below that its fine if not it bucks like crazy. Question I am asking is after fixing my 5 boost leaks I still have one at the throttle body shaft seals, would that be enough to cause the car to buck/sputter. Its so bad it about tears you out of car. Car has new CAS, coilpack, plugs, ngk bpr6es, and magnacore wires. I am just stumped. Some advice or info would be nice. Thanks

 

[95fwdtsi18psi]

I had the same problem. I had a leak at the throttle cable seal, the butterfly seal, and my BISS o-ring and trust me I had my car set at 14 lbs on the T25 and it was causing me to run 17's and only run about 5-6 psi till it fell back to 0. So to answer your question. Yes.

 

[talonawd4g63]

Did your car also sputter/buck when it was running like that?

 

[Boost92awd]

First thing is you need to fix ALL boost leaks. Then report back on how it drives.

Throttle Body O-Ring

 

[talonawd4g63]

I just ordered the seals today from machv says will ship in 5-7 days must be on back order. I will let you know when I change them.

 

[talonawd4g63]

Problem solved fuel filter had sludge all over it. It was an earl's 6-an filter only on for a yr. Must have been from car sitting so long, I ended up having to change the filter on the pump also that was covered and I dropped the gas tank also because there was sludge and rust everywhere looked like someone took a dump in my tank. Thanks for the advice though.

 

[97gst_spyder]

First thing is you need to fix ALL boost leaks. Then report back on how it drives.

Throttle Body O-Ring

In the link it shows two o-rings replacing the one original shaft seal.

Only one o-ring was listed, #7. Anyone know what the other o-ring size is?