jss

I think its part of the emission stuff but I could be wrong
it looks like a screw in sensor with 2 vac lines going to it.
emission stuff has been removed so that valve is left in so coolant does not come out.

just want to confirm its nothing to do with interior heater

tried search on it but nothing comes up

Ronin-951

Hi again jss. Would recommend that pictures be used with all your posts as a non-professional transformation from Turbo to N/A with new to 44's owner can be quite confusing for those willing to help. If you tell us where you are, maybe someone can swing by and help you out.

onspeed

i know what he's talking about. there's a fitting on the line that goes to the heater control valve that has connects to 2 vacuum hoses... no idea what it does though, and I don't remember where the vacuum lines lead to either.

jss

the blue circle

jss

last of my unknow problems is the vac lines where the a/c enters the interior there is 2 vac lines there too.
1 goes to battery area but the other is not connected I wonder if that connects to the thermostat valve

onspeed

the other one should connect to the heater control valve.

and I'm not entirely sure on this, but i think the line going from the firewall to the battery area isn't needed since it's for a vacuum reservoir when you're on boost.

jss

so the one on the right goes to this?

PorscheDoc

The thermo valve has two "ears" on it and it screws into the 90 degree coolant elbow. It feeds the throttle body hot vaccum to keep the throttle from freezing in extreme weather. Most people just cap the port on the throttle body and the port on the valve near the fuse block, and leave the fitting in place.

jss

ok got it thanks thats stuff is gonzo thanks again

mikeyoman

jss

check out Lindsey Racing vac line diagrams to assist you.
http://www.lindseyracing.com/LR/Parts/VACDIA.html

Chris White

???? Doc, I'm surprised...you are usually right on target…

The thermovalve is part of the emissions system – once the coolant comes up to temp the thermovalve opens and allows the vapors from the charcoal canister (inside left fender)to be drawn into the throttle body (small 90 fitting at bottom of Throttle body).

The vacuum line going into the fire wall does control the heater valve; there should be another connection that supplies the vacuum for the HVAC controls.

And yes, it would be a good idea if you include the odd history (turbo to early NA swap) with questions – you have a very uncommon hybrid!

PorscheDoc

Meh, i've learned in the past not to do more than one thing at once, lol.