Car idling prob after installing BOV

[Guilty]

Hey everyone,

i just got a lil probelm with my car idling unsteadly. I just installed my apexi dual chamber BOV today and i could immediately feel the difference, the car is more shaky and the idling is really unsteady...and sometimes it is about to stall. Although i have heard of it happening before on other cars, would there be any other reason?

The only reason i can think of is that i didn't tighten the screw enough.

But has anyone had the same problem? and how can i fix this? apart from chagnin to stock bov

[krzysiu]

If you change to a Atmosphere bloff off valve then a SAFC would fix it. Or just get an Aftermarket Bloff off vavle that is 100% plumb back.

[Roy]

Hey everyone,

i just got a lil probelm with my car idling  unsteadly. I just installed my apexi dual chamber BOV today and i could immediately feel the difference, the car is more shaky and the idling is really unsteady...and sometimes it is about to stall. Although i have heard of it happening before on other cars, would there be any other reason?

The only reason i can think of is that i didn't tighten the screw enough.

But has anyone had the same problem? and how can i fix this? apart from chagnin to stock bov

I know of ppl who have had similar probs, but i never have. And i have used the Apexi BOV and found that it worked well on my RB20.

So, a few questions. If the engine isnt idling properly then am i right in assuming you have a vacuum leak? Now considering how a BOV works there is no way a BOV will leak at idle as there isnt enough force to overcome the spring tension.

Where did you install the Apexi BOV? Std location. How did you plug up the old recirc line from the std BOV. Where are you taking the vacuum/boost line from for the new BOV? I could be wrong but i have never had any idling probs with any BOV, dipiing in the clutch at 4,000rpm and the car stalling yes, but not at idle

[Guilty]

well im not quite sure myself..my friend installed it for me as my knowledge of engines is limited..

but i just went down to check my bov rite......is there suppose to be 2 hoses plugged into the side of the apexi BOV or 1? coz i have one i plugged onto the side where u see that black hose in the pic and i found that there was another hose near the BOV that was a vacuum (sucking air) and it was not connected to anything......so im wondering if it is suppose to be attached to the bov and it may have fallen off and making my car idle unsteadly.

Oh and one of the screws on the BOV is a bit loose which i am yet to fix, will that lead to a vacuum leak?

[krzysiu]

The second pipe would be the plumb back pipe. If the blow off valve is a half atmo and half Plumback. If its like that both should be connected. If its a 100% atmo the plumb back pipeshould be blocked off.

[Guilty]

ohhh nooo...not that pipe..i blocked that off already..thats a big asss pipe..

there is another smaller hose which suckz air (vacuum) that is not plugged to anything. That's not plugged to anything, so is there suppose to be 1 or 2 hoses attached to the ATMo bov.....aside from the plumb back one which i have already blocked off

i can easily hear that suckin noise when im sitting in the car.

[krzysiu]

hmmm try to connect it to the Valve but be careful not to break anything. Just go to a mechanic. They can tell you for free wat to do.