Urgent Help Please...Hardpipes/BOV

[CChris704]

Hey I need my car running by tomorrow night since I'm leaving for school so all help would be great. I put my hardpipes on today that has the TB-IC (the longer pipe). I have a vacuum hose that is running from where it goes to the wastegate and I'm using what used to lead to the BPV which is now going to my BOV. No matter what the setting I try I still stall like crazy and it was a bitch getting my car home cause I couldn't drive well in anything but third gear at 3000rpm. Oh, I'm running an injen intake that has the valve that used to have the bpv hooked to it blocked and I also tried without it blocked. Whats going on? Do i need to run the dual setup or am I doing something wrong? I can post pics tomorrow morning if you think that would help.

[evolv]

what do u mean the BPV hose runs to the BOV ??? explain better

[CChris704]

the two vacuum lines that lead to the BPV and the wastegate...instead of running to the BPV I have it now going to my Greddy Type-S...does that explain?

[evolv]

run a seperate vacuum line for the Greddy, then adjust it until the stalling ends.

its a balance between sending enough air through the BPV (which the ECU looks for) and blowing enough air out the BOV to get rid of the turkey and improve performance.

test test test (but first get seperate vacuum lines)

do a search in this forum for BOV + BPV set ups.

[CChris704]

this is probably a dumb question but what do you mean by seperate vacuum line. Should I 'T' off of a different line or not. I'd also prefer not having to run a dual setup so I don't have the have a flange welded on for the BPV again since right now I just have the BOV with no BPV

[jurgs01]

What type of hardpipes do you have? Run the dual setup. It is not necessary to run your BOV off a separate vacuum line than the wastegate, just better. You are stalling because you are blowing off air that the computer expects to be recirculated. You would almost have to have the BOV completely tight (very little sound) to get it not to stall and then you would have mad turkey. People have run without the dual setup, but it sounds like you can't so just try the dual.

[jurgs01]

What he means by separate vacuum line is like the brake booster line. This will improve the response of the BOV, which will not help the stalling.

[MazdaSpeedTurbo]

pull the battery terminal off and reset the computer leave it off for about 3 - 5 min and then put it back on start the car and rev it till it starts to stall.. if it stalls try it again.. when you reset your computer the car has to learn everything again such as idling this should fix your issue..

[CChris704]

alright thanks guys...keep the ideas coming

[MazdaSpeedTurbo]

alright thanks guys...keep the ideas cominglet me know if this fixes it.. it should ..

[evolv]

its always difficult to trouble shoot something that you cannot see, some good ideas here, gl with the fix, let us know how it goes

[jurgs01]

let me know if this fixes it.. it should ..
Our ECU is a "learning" ECU, so this may help. You have to remember that out car has an MAF, and the ECU will never "learn" to ignore the amount of air the MAF reads. The fact that the air is recirculated (uses a BPV) is programmed into the ECU. So, this will help but may not correct the problem. I hope it does though. It is a smart thing to do any time you make a major modification on your car.

[1FASTMSP]

the car will stall if you do not have the BPV recirculated, hook this back up and you will be fine, otherwise you will continue to stall...

[MazdaSpeedTurbo]

the car will stall if you do not have the BPV recirculated, hook this back up and you will be fine, otherwise you will continue to stall... not true i ran a non recirculating bov for 6 months and never stalled once.. so recirculating is not always the answer. taught my computer how to idle with it non-recirculting..

[1FASTMSP]

not true i ran a non recirculating bov for 6 months and never stalled once.. so recirculating is not always the answer. taught my computer how to idle with it non-recirculting..
this is interesting, because i tried to run mine like this and give the ECU time to learn, but it never did, so i went back to circulating it again....

[CChris704]

saw i recirculate the bov...i got the recirc kit just no hose to go from the bov to the intake...but yeah definatley tried reseting the ecu tonight....disconnected the grounding wire and alarm went off when i put it back on....neighborhood probably isn't happy to say the least

[MazdaSpeedTurbo]

heh
saw i recirculate the bov...i got the recirc kit just no hose to go from the bov to the intake...but yeah definatley tried reseting the ecu tonight....disconnected the grounding wire and alarm went off when i put it back on....neighborhood probably isn't happy to say the least

[jurgs01]

Has to do with the amount of fuel dumped. If the MAF reads more air then is going to the TB, then it will obviously dump more fuel thus causing the stall. Our cars have been shown to run different A/F ratios from car to car so if he has one that runs leaner than others maybe that's why he doesn't stall. Who knows? I have to run the dual setup with mine.

[MazdaSpeedTurbo]

Has to do with the amount of fuel dumped. If the MAF reads more air then is going to the TB, then it will obviously dump more fuel thus causing the stall. Our cars have been shown to run different A/F ratios from car to car so if he has one that runs leaner than others maybe that's why he doesn't stall. Who knows? I have to run the dual setup with mine.
I run very rich back fire all the time .. but anyhow this motor will be gone in about 1 month soo.. then the fun starts!!!! yay!

[CChris704]

Before you look at the pic...yes it is kinda a ghetto setup cause it was supposed to get me to streetstyle and back efficiently but not look pretty. this is the only picture i could take cause my camera died right after the pic and i don't feel like AAA battery searching and yes I do clean my engine bay but we were stalling on main roads trying to adjust the BOV while it was raining.... a VERY long story...

haha and yes the tape on the intake is very cheap but it seemed to stay on there enough to hold on tomorrow...lol

(scratch)

[MazdaSpeedTurbo]

Before you look at the pic...yes it is kinda a ghetto setup cause it was supposed to get me to streetstyle and back efficiently but not look pretty. this is the only picture i could take cause my camera died right after the pic and i don't feel like AAA battery searching and yes I do clean my engine bay but we were stalling on main roads trying to adjust the BOV while it was raining.... a VERY long story...

haha and yes the tape on the intake is very cheap but it seemed to stay on there enough to hold on tomorrow...lol

(scratch) wow cut that vacuum hose down !!! dont need much at all.. possible issue :) like sucking peanut butter thru a staw that is 3 foot long

[1FASTMSP]

what is hooked up where the BPV used to connect to the injen?

[CChris704]

haha as i was saying "GHETTO SETUP" until i got til tomorrow, hence my long disclaimer before the picture. I didn't think the length of the vacuum line would make that much of a difference... but yeah the time will come tomorrow. 1fast- i just used some industrial tape and a zip tie for the night but that is also being blocked in a better manner tomorrow (thats supposed to be blocked am i correct?). I think I now know why i shouldn't start projects at 8 o'clock when stores are closed.

[MazdaSpeedTurbo]

haha as i was saying "GHETTO SETUP" until i got til tomorrow, hence my long disclaimer before the picture. I didn't think the length of the vacuum line would make that much of a difference... but yeah the time will come tomorrow. 1fast- i just used some industrial tape and a zip tie for the night but that is also being blocked in a better manner tomorrow (thats supposed to be blocked am i correct?). I think I now know why i shouldn't start projects at 8 o'clock when stores are closed.
well no it shouldnt be blocked it is meant to be recirculated but if it isn being used to recirculate you should make sure to have it air tight and blocked off

[CChris704]

oh yeah, thanks a lot for all the help so far tonight...also if worse comes to work can i hook the stock turbo-intercooler pipe back up and run the dual setup til i make to a welder

[CChris704]

well no it shouldnt be blocked it is meant to be recirculated but if it isn being used to recirculate you should make sure to have it air tight and blocked off

so since I'm not recirc'ing for now just block it off... before i took the ziptie off that thing was pretty damn airtight

[MazdaSpeedTurbo]

oh yeah, thanks a lot for all the help so far tonight...also if worse comes to work can i hook the stock turbo-intercooler pipe back up and run the dual setup til i make to a welder
aight well sorry i couldnt help ya i have to get to bed early work sux.. hope you get it running

[MazdaSpeedTurbo]

so since I'm not recirc'ing for now just block it off... before i took the ziptie off that thing was pretty damn airtight
yea make sure it is air tight.. might try it with out blocking it off maybe fool the maf alittle

[Rich24km]

could you put a breather filter over the part that is supposed to be recirculated to on the injen? Would that help at all?

[CChris704]

yeah we acctually thought about that but never gave it a try...i'm going to put the stock turbo-intercooler pipe on and run the dual setup and just go without a boost guage for a few hours...

[CChris704]

Hey this is my setup now...don't have my boost controller so should I tap into the BPV/Wastegate line for that? Anyways here is my setup and my Turbo-IC pipe is now at the welder getting the nipple welded on but could u guys check these pics for errors...i still get the turkey but I'm hoping that its because I haven't spent enough time with the BOV and the other hardpipe is missing...

oh yeah, sorry about the pic quality its from my camera but i think you can get a good idea of what i did...