BOV Venting

[TeeWX98GST]

Well heres the problem... I own a 5spd 1998 Eclipse GS-T with a full apexi exhaust 3in, 5in tip, 3in down pipe as well, hks ssqv bov, stage 2racing clutch (ACT i think), SBR boost controller, 3 gauges on a-pillar(boost, air/fuel, oil pressure) running 14psi on the stock 14b turbo,everything else is stock. I had to rebuild the heads in the car (timing beltbroke on the guy who i bought it from), and he also had an apexi safc that he had mounted in front of the middle air vents but he said it fried on him so he just unplugged it and took it out of the car (im guessing the AC or Heat fried the safc) but anyways itll start up and run fine, but as of recently at stoplights and stuff itll idle wierd and sometimes die when i let off the clutch after ive gotten on it, it seems to only idle weird when the engine is warmed up and when I've got on it and shifted at higher rpms.It runs really rich (enough to blow a flame sometimes when shifted quickly),and it will idle at different rpm at stoplights and such, and sometimes die. Itll drop down then pop back up to a stable idle and stay there. My only real guess is that the HKS blow off valve being vented to the atmosphere is messing with how the car runs or i need a new SAFC but i dont know exactly how the old one was fried. I read a lot of threads here on dsmtuners but found many possible things it could be and no real answer to if it could be the safc being gone or the bov vented to the atmosphere. I figured i'd ask here and see if anybody knows if thats what it could be or if its definently something else since you guys here seem to preach BOV venting to atmosphere messes with the car, and all i want for my dsm is maximum performance. I've changed all my belts, all my fluids, run synthetic oil,and all my hoses are new. When i vent back into the intake i was thinking about using an Injen Intake with the HKS bov rerouter kit. Unless theres a better solution? Right now my car has a K&N Filter on the stock rubber intake housing with what looks like the SBR Adapter. Thanks for any Help.

 

[viprez586]

Search.

DO NOT VENT ON STOCK MAF.

 

[96gstdsm]

Please search here. This has been gone over hundreds of times. Do not vent unless you switch to a blow through set up via gm maf and maft

 

[TurboTsiThatFly]

My money would be on the bov not being recirculated. Best bet would be to buy the recirculation fitting and try it recirculated if it stops the problems then problem solved otherwise you might have a different type of problem. Im not sure where to start from there.

 

[snowborder714]

When i vent back into the intake i was thinking about using an Injen Intake with the HKS bov rerouter kit. Unless theres a better solution?

That setup would be fine.

Don't vent. The only proper ways are blow thru or speed density.

Also do a boost leak test. You may have some other leaks.

 

[dsmzoom]

get a recirculation kit asap and you can always buy the injen pipe later.

 

[DSMULATOR]

BOV vented to atmosphere should really only affect your fuel mixture in between shifts, unless its opening up while driving. Did you need the SAFC because of aftermarket fuel mods?

 

[layzie12g]

At the last meet i went to i saw people with out the recirculation kit venting the HKS SSQs to the atmosphere without the GM blow through. (Something i havent seen work before) Some people say it works out becuase of the pull push type of bov used. I wouldnt vent mine without the gm maf and if your car is having problems go buy the recirculation kit for 40 bucks. So do u have a 14b off a first gen or a stock t 25 that came on 2gs?

 

[coryd]

On the top of the screen just under the dsmtuners logo, look 5 buttons to left, you will see "search" in yellow letters, click on it, type what you are looking for. This button will become your one and only best friend. If you cant find it from your best friend then post a topic and im sure your 2nd best friend (another member) will help you answere it. But only if you ask your best friend first

 

[crimsondragon]

If there was ever a 10 Commandments for a DSM, one of them would be "Thou shall not vent lest he be worthy of vent by order of a blow thru system."

 

[4G63_Attack]

Is it me or the noobs are not trying to search any more ???

 

[GST racer]

Try to recirculate your bov. You may also have some tuning issues. If he had the afc, he probably needed it for the huge exhaust the car has OR possibly different sized injectors.

 

[Defiant]

Venting the BOV to atmosphere isn't discussed on this board, because it just doesn't work with the stock DSM stetup.