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Problems After Installing A Bov

Lady_Woogy

By Lady_Woogy,
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Lady_Woogy Apprentice

Lady_Woogy

Posted
Posted

Hey all.

i installed a drift bov today with plumb back or atmo i could choose either way but i choose atmo..

Since then its been running like crappolia..

Is there anything like a cpu upgrade or soemthing to fix the problem?Or is it just something i have to deal with

thanks

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Modena Grand Master

Modena

Posted
Posted
Hey all.

i installed a drift bov today with plumb back or atmo i could choose either way but i choose atmo..

Since then its been running like crappolia..

Is there anything like a cpu upgrade or soemthing to fix the problem?Or is it just something i have to deal with

thanks

If its venting to atmo then you will run rich and your car will occasionally stall. Atmo BOVs on Skylines can be a bad mix. You can fix it up, DAFS.

lach 32 Collaborator

lach 32

Posted
Posted

happens to most people who install the atmosphere venting bov's. After a while you will learn how to adjust your driving so it doesn't stall. All i do is blip the throtle when coming to a stop ect. Do a search on the forum about this, been covered alot of times, you may find some use full tips.

LatinR33 Experienced

LatinR33

Posted
Posted

Unfortunately blow off valves and skylines as some other member explained are not a good mix. I even use to have a GFB stealth that you get to adjust how much air is vented and how much is kept and car still didnt feel the same and idle was terrible. I know its not what you want to hear but if you want to have a car that runs well then install your stock bov.

clkngezz Enthusiast

clkngezz

Posted
Posted

i still have my stock plumback on my s1, no problems as in running, sometimes when letting clutch out a little to move forward in places like drive through with a little bit of throttle then go to put brakr on and clutch in cars idle does drop to close to a stall but then picks up again, only problem i have in regards to stalling hope this helps

adam-__- Grand Master

adam-__-

Posted
Posted

Stalling when having a atmo bov installed is a really common thing. The reason it happens is because the afm detects the air going into the engine and puts more fuel in to burn the air, but the air is not getting into the combustion chamber, it's going out of the bov. I hope that made some sense.

As far as I know, it's something you just have to deal with if you're got a bov installed.

Rob_C110GTR Community Regular

Rob_C110GTR

Posted
Posted

some people here adjust the idle just a little higher than stock, others just learn how to drive them like when you're about to stop change gear or clutch in when the idle is near idle speed. Or you rev it a little before you stop.

  • 2 weeks later...
FordyR31 Mentor

FordyR31

Posted
Posted (edited)

The main issue with atmospheric BOV's is the AFM... Once air has gone past that it is accounted for by the computer, any difference an atmospheric BOV will cause means there is air accounted for, but not being used. With MAP sensor its a different story as it reads manifold pressures not airflow before the turbo. With the plumb back system the air goes back through the turbo or the afm keeping it all in the circuit of the airflow so the ecu can adjust according to the afm readings. Some cars just handle it better than others, my mates 32 used to be perfectly fine with big turbosmart BOV's but my mates 33 would stall all the time with a Blitz one and then the HKS one.

Liam

Edited by FordyR31

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