Mystery Problem

[tarheels23]

So recently when im on the freeway driving in 5th and go heavy on the throttle as soon as I go into boost in the motor feels like its shaking/studdering. but doesn't do it in 2nd or 3rd but a little bit in 4th. Normal acceleration it doesn't shake of studder


I have checked for boost leaks today and there are none.

spark plugs are bpr6es and only about two weeks old gapped to .30 and also have a new o2 sensor, new 1g mas, fresh oil, spark plug wires are fine.

Checked my TPS...has 4.95v on pin 1 and 4, pin 2 and 4 had a reading of .50v and with the throttle fully open it read 5.07v.

Got a CEL today on my way home checked it and it came out to 24 which is vehicle speed sensor and my odo works perfectly fine.

Also has a fresh radiator, and my coolant is greener than can be, so no oil in coolant

All wire connections are connected, Oil Pressure is normal and vacuum/boost gauge reads about 18-19 at idle

Have noticed a little bit of oil in my intake pipe but don't have the breather on the vc connected to the intake, so hows oil getting in there?

I'm out of ideas what it could be and dont know what to do next

mods are fmic, 8psi on 14b, 2g head on 1g block, 2g IM, stock injectors

 

[snowborder714]

Please try again with a more descriptive thread title. A generic thread title like this does not help me when browsing new threads to see if I can offer help or when searching old threads for info to help myself or others.