having boost problems or am i?

[thehookeup]

so my turbo is being a little funny. if i suddenly get on it it will boost to 17 psi. and stay there with no fuel cut. it will keep fuel. then i will slowly get on the throttle and it boost to 12 and then stay there. if i go ahead and really really slowly get on it on the freeway it will only boost to 9 psi. its almost like i get to pick and choose with my foot what i want my max boost to be. lol. it runs awesome at all psi's

i put my manual boost controller on and i havent calibrated it yet. but its doing the same thing that the stock boost controller did. any ideas?

[Splinter]

Where is your gauge connected?

[thehookeup]

into a "T" off the manifold

[Splinter]

Bad wastegate actuator possibly?

Im grasping at straws here.

[magicmike]

yeah, check the wastegate. sounds like its stuck shut. you should be able to move it by hand but it should be hard. remember it opens towards the firewall.

[thehookeup]

wastegate is perfect. i checked it. it only has 1000 miles on it. and so does the turbo

[magicmike]

hum, well how is the wastegate plumbed? are you using the stock sol valve or do you have it plumbed to the nipple on the turbo?

[thehookeup]

wastegate is plumbed throught the MBC to the intake manifold

[Splinter]

MBC should go to the compressor nipple, not the manifold.

[thehookeup]

it shouldnt matter. compressor or manifold. its more accurate at the manifold