Specopsbrooklyn

I have a 2016 911.1 tts with an AIM 750 kit and tune and a sprint booster (bought 2nd hand). Car ran and drove as expected for over a year. A week ago i put the sprint booster in valet mode to leave car to get paint correction (but i dont have the 3 digit pin to put it back to normal) I'm now getting only 1-3 lbs of boost. I get an engine fault code P0068 Permanent MAP/MAF - throttle position correlation.
So far I've tried 1- erasing code with Icarsoft. Code Keeps coming back
. 2 - erase code and remove sprint booster, code keeps coming back
. 3 - erase code, remove sprint booster, pull tune from car, and disconnect battery for 30min - code keeps coming back.
I'm at my wits end. I have a super car with about 250hp HELP PLEASE

CodyzWorld

Check the vacuum - boost tubes. I had all of them tie-wrapped and snugged.

sirius9

Sounds like electronic actuators of one of the turbos has failed.
It wont boost pass 0.3 bar.
Safety measures by ecu to not allow either turbos to boost.

p/s: Why do you need a sprint booster kit when you already have AIM 720kit with tune?

Specopsbrooklyn

After clearing the codes i have boost for a min or so and the im back to 2-3psi andits repeatable so i dont think is a leak or an acuator issue

Specopsbrooklyn

I had the sprint booster on the car before the AIM 750 install.

sirius9

When one side of my electronic actuators went, the on board boost display on mine shows boost up to 0.3 bar ie 4psi, and not anymore than that.
Thats my experience.

Simple check would be to see if the actuators are stucked, by jacking the car up and pushing on the actuator bar itself?

hollandca12

The same issue occurred on my upgraded turbos a few months back and it ended up being the actuators.