i have a question. why is it that when i take my dump tube off my bov it causes my car to try and stall when i put the clutch in after driving.. and it started to backfire uncontrolably. kinda like it tho.. did this happen to anyone else when they did this

 

Yeah it happened to be when I got my intake and bov. It is because the car isn't getting as much air as it would with the return tube. After I got my safc in it stoped doing it.

 

Yep, with that tube off you will always run a lot richer than normal, becasue your MAS always adds the extra air from that dump tube no matter what, even if you use a safc, you will still run richer then you should. Only way to get rip of that dump tube is to get a MAF translator and run it blow through, or VPC.

 

so this isnt gonna cause the cel to come on is it. last time my car got the wrong fuel reading and shit it was a perm cel.. pissed me off and i just fixed it too.. is this a problem or can my car deal with it??

 

I don't think its a huge problem, but, you will never be able to tune your car perfect with it the way it is.

 

Your BOV is probably leaking. Ther reason you cant take the retur tube off is the air that is released from it when it opens is air that the mas has already calculated in the cars A/F ratio.That air needs to be recirculated. When you dump to the atmosphere you are releasing air that the car thinks its getting but its not and that is why it runs like shit. They also have a tendency to leak which also will mess with the tune of the car. In short if you want to dump the BOV to the atmosphere get a VPC,GM maf w/ traslator or a stand alone.

 

There is nothing to be gained by removing that dump tube. Leave it on

 

 

maf? what is that. i just got a new mas but yea i know im not gaining anything but im not losing anything i dont have a race car like the rest of you i just have a stock motor/turbo with a ic pipes and bov, exhaust so i mean im not tuning my car in anyway

 

That was the point I was trying to get at. BUt yes, this is true.