Intake Flap Controls.

[Geflackt]

Can someone give us a run-down on how the intake distribution and tuning flaps are controlled on an S model?

- What generates the vacuum? (tandem pump?)

- How are the vacuum lines routed?

- Is there an accumulator?

- What actually controls the individual vacuum to the flap valves?

 

Bonus question: How can you tell if the distribution valve is being actuated?

Jay.

'06 987S.

[Loren]

Here is part of your answer... there is much more in the 2005 Porsche Boxster Service Information book (available here to our Contributing Members)

 

[Geflackt]

That 2005 book is a great source of info!!  Wow!  Happy to contribute, but now I'm not getting much work done today!

[Jayrasheed]

Any chance you can post the tuning flap rpm ranges and function

[Loren]

4 hours ago, Jayrasheed said:

Any chance you can post the tuning flap rpm ranges and function

 

I am sure that the tuning flap is controlled by the DME based a number of sensor readings.

[JFP in PA]

4 hours ago, Jayrasheed said:

Any chance you can post the tuning flap rpm ranges and function

The article above lists the rpm ranges for base and S engines in the 987.