Chapman951

This first vacuum line is coming off of the brake booster. Is it suppose to attach to something?



I’m using this diagram (thank you to whine ever created this) to route my vacuum lines correctly. The car has a Venturi and cyclic valve delete. Would anyone know what the component is that I circled green?






These 2 prongs sticking out are underneath the intake manifold. I’m running a manual boost controller with a bypassed cyclic valve. Is this part of the cyclic valve and can be ignored?




This orange tube runs behind the firewall. It is currently disconnected. Is it part of the vacuum system?





Thanks guys! Fun weekend projects ahead :-)

gruhsy

Not sure if you are still looking for answers

There are two vac ports on the firewall.

The double ended part under the intake is still attached in the system on my car and I am running a manual boost controller and no cycling valve. It opens a coolant line when under vac...if I am thinking correctly....I forget the exact function.

Dan Martinic

The part you circled in green is the two-pronged "bunny ears" part you ask about in the next picture. This is a valve that opens after a certain temperature to let vacuum through for the purpose of controlling that black&white disk it attaches to (part of the EVAP system)

gruhsy

ah ha...thanks I could not quite remember and I new temp was part of it.

Chapman951

gruhsy - thanks for response and picture! Big help :-).
Dan Martinic - thanks for the response! I will connect the bunny ears prong and research EVAP. Is that related to SMOG?

For the 2 prong bunny ears, do you guys know which one goes to the Fuel Vapor Purge system and which one goes underneath the intake manifold boot?

Still trying to figure out the brake booster line. (picture one)

Dan Martinic

Two-prong bunny ears: the straight 90deg ear goes to EVAP & the angle ear with red mark goes under throttle. Here's mine




Not sure what that first pic is. Do you have the usual black&blue check valve?

Chapman951

Dan Martinic - thank you thank you

Chapman951

Im not sure what the usual black and blue check valve is...

Dan Martinic

It's in your posted diagram. Location on my car:




I'm just wondering if that white piece you've got is the same "check valve".. perhaps older version?

Chapman951

Oh yeah :-). It could very will be! Hopefully someone else chimes in. She is a 1987.
i used wd40 on my intake manifold and “Porsche” lettering. It did a huge difference :-).

I like the cruise control delete. Might start on that tomorrow :-). I need to fix my odometer also so I could remove the cruise lever by the steering wheel at the same time.

Chapman951

Dan Martinic

where did you move this:

Chapman951

I just found this picture :-)

https://cdn4.pelicanparts.com/techar..._med/pic01.jpg

Dan Martinic

I don't have cruise control. I believe you've circled the power connection for the cruise unit which is directly underneath (a cable runs to it)

Looks like that white piece could be your check valve. Time to put that vacuum system in order! PS I recommend the Laust Vacuum Manifold: it's the brass thing on my intake where are the little vac lines attach to. Google it and a rennlist thread should come up. I think he's got a few more left

Chapman951

Woohoo wrapped up this project. Went very smoothly :-).

Big shout-out to the creator of this picture. Saved my butt. I had to reroute a few things :-)

Next I need to figure out why I’m not boosting.

Dan Martinic - thanks for that recommendation. Might use it in the future.

Dan Martinic

Re: "not boosting"

I highly recommend you perform the official diagnostic procedures starting at Test Point 12: http://www.arnnworx.com/download/DME_KLR_Test_Plan.pdf

In fact, this entire collection of procedures--meant to be performed more or less in order--is a fantastic place to start troubleshooting. You'll learn a ton about the car too

Cheers,
Dan