greens14

iTrader: (28)

i have a vacuum leak( causing o2 sensor CEL lights periodicallyh and ebrake warning under hard braking)


* ive removed intake manifold a few times adjusting valve clearance. issue occurred after this.
*ive tried using carb cleaner to locate vacuum leak( i guess its too small)?


anyways should i cap this vacuum line( i can hear the suction in it) or do i leave it open. Its in the passenger side of the firewall, pics shown below





and zoomed out










also if anyone could kindly take a picture of their vacuum line routing on the driverside of the engine bay by the intake manifold; it would be greatly appreciated.

greens14

iTrader: (28)

Oh man if no one knows cab somebody take pics of there sc300 outside at least please. Thanks for the help guys

jmorando05

iTrader: (2)

I don't see an open vacuum line in either pictur

INTIMAZY

iTrader: (5)

Mine is open like that as well. Must be part of that mysterious system known as "EVAP"
Never felt if it has vacuum or not. I always wanted to know what it does but always forgot to look it up.

greens14

iTrader: (28)

here !




sounds good sir! its just this issue came out of no where. its either one of these lines or one other thing i might be overlooking. my valve cover broke so im using a random fuel line as a hose which doesnt fit exactly snug. im waiting to stumble upon another valve cover so i can fix that and get it taken care of:

Bflatsharp

iTrader: (18)

That is your pcv valve it should pull out. 6 dollar part.

Bflatsharp

iTrader: (18)

The first one is a check valve for the charcoal canister. I would not cap it off.

GS4_Fiend

iTrader: (22)

Pcv valve should be on the valve covers not there.

Bflatsharp

iTrader: (18)

You are right first pic check valve last pic pcv.

greens14

iTrader: (28)

thank you thank you thank you. had no idea it pulled out. i tried pretty hard but didnt want to damage anything. I'll try getting a replacement shortly. hmmm not to find out which vacuum is misrouted!

Ali SC3

iTrader: (10)

do not cap the first one it is definately a safety relief valve for the evap canister, it will only release pressure if the canister builds up too much pressure before the engine has a chance to draw it in. it is a safety feature that only opens in emergencies so it should not be capped off.

Bflatsharp

iTrader: (18)

Even a blind squirrel finds a few nuts.

GS4_Fiend

iTrader: (22)

Just checked this to confirm. He is right. Don't touch it and leave it alone. It's like that.