Thread: Vac line for map sensor

Hey guys. I'm converting to map/speed density on my W11 and have a question about the map sensor. Can I use the vacuum line from the top of the charcoal canister for my vac source? All my other ports are being used by other things. I don't think it would be a good thing to tee off any other line as I believe it needs a good solid source of vacuum. Any help is appreciate it. There's also 2 ports in the bottom of my intake manifold that areare capped off but they are huge,I believe they are for the iacv which is probably y I have issues idling but haven't had a response for that issue. Thanks for any input

You can use any line that is attached directly to the intake manifold and doesn't go through any other solenoid or valve.

Generally it is OK to T into the reference that goes to your FPR if you have no other sources but if you have something open then definitely put it on it's own source from the intake.

those two lines underneath the manifold are for an air regulator that is installed under there. the iacv on the w11 is directly on the intake manifold

Mine works fine Tee'd off the FPR vacuum line.