TDI Help!!!

[catlin_cava]

so before i take it to the dealer id like to try and figure out WTF is going on,

the other day i had a 000564 code Boost Pressure Regulation: Limit Exceeded (Overboost Condition)

I checked all my Vacuum lines, Actuator holds vaccuum, cant see any leaks in the Vac lines, checked all the intercooler tubing

when i would drive, around 2200RPM the car would start hesitation and surging, i would hit 3300RPM and the car would take off like a rocket,

havent drove the car in a couple days, today the car worked GREAT!!! went down to the store on the way back BOOM limp mode got home and scanned it. 000665 - Boost Pressure Regulation: Control Range Not Reached

this is a 2006 Jetta TDI BRM engine code,

[rallydiesel]

Can you move the vane actuator? Pretty hard to reach on the BRM but can be done.

[catlin_cava]

Can you move the vane actuator? Pretty hard to reach on the BRM but can be done.

yea, i can move it with a screw driver no problems.

[rallydiesel]

Is there a lot of soot around the egr cooler flap valve actuator?

[catlin_cava]

Is there a lot of soot around the egr cooler flap valve actuator?

where is that??

[rallydiesel]

If you look from under the car, you can see an actuator that closes off the egr path to the egr cooler. It should be covered by a fabric heat shield. The bushing often leaks and hot egr gases blow out coating surroundings in soot and causing low boost. It also tends to whistle around 2000 rpm.