Loss of power under any load

[x-kiwi-x]

Ok guys, I have searched and havnt found anything the same as my issue.

I have a 97 Talon TSi AWD, just did a fresh re-build on the engine, including plugs and wires, put on a E3 16g have a cometic head gasket, VR-speed FMIC, stock fuel system and no ECU work.

I have had it back and running for about 1500miles and no issues, until the other day i was pulling onto the highway and the car lost all power as soon as i hit boost. i can drive it without going into boost but even 3lbs will cause the car to buck and lose all power. Have ran several scan tools on it and am having no codes thrown.

Any ideas would be helpful.

 

[4g63monstr]

Your vacuum line to your wastegate may have come off causing this issue. check vacuum lines would be my first step.

 

[luv2rallye]

Air leak in intake ducting (between turbo and TB). Check all clamps.

 

[x-kiwi-x]

i have inspected myself and have had a mitsubishi tech friend inspect the car, all lines, hoses, and sensors are attached correctly. Im thinking that a sensor has failed but from what i have inspected things seem to be operating ok individually.