really need help gettin fustrated

[mk3supra978]

ok guys i have a 89 supra turbo
apexi twin chamber bov
deleted two resanators str8 pipe no muffler sounds good
everything else stock


so when im driving around low or high rpm whenever i pull the clutch in it wants to die out some time it dies sometimes it doesnt does anybody know what can be the problem ? its not the maf coz i just changed that there is no CEL last time i had a CEL it was for the maf so i changed that n now its gone im running only 4psi for now coz everytime i turn it up to like 6-7psi and push it it sputters like the car doesnt wanna go i wish i knew the problem if anybody could help me that would be great

 

[hvyman]

Sounds like a boost leak.

Also venting to atmo can cause some cars to stall out when coming to stops or letting off to idle.

 

[mk3supra978]

hmm that might be it ill try to find that leak but another question for you sir i have a hole in my intake filter could that cause anything bad to happen while in acceleration ?

 

[D.J.T.]

hmm that might be it ill try to find that leak but another question for you sir i have a hole in my intake filter could that cause anything bad to happen while in acceleration ?

Haha that means its prone for dirt to get to the intake & turbo. Get a new air filter asap. One of the main causes of engine failure is dirt. Well thats what ive heard.

 

[SURUKO]

Some pics can help too ... sounds like a vac/boost leak if u ask me

 

[hvyman]

Wont effect acceleration but is bad for your turbo like already stated.

 

[Dirgle]

In concern to your first post I think hvyman is right. It sounds like the spring tension on your BOV is incorrect. Correctly adjusted you shouldn't have that problem. That said, I don't particularly care for BOV's as I believe they create more issues than benefits on a MAF/KVM based system. A recirculating valve is the way to go IMO. But to each their own.

 

[Scott 88-1JZ]

I think it is the BOV not being recirculated as well. With my greddy type-s it would stall sometimes between shifts or coming to a stop and pushing the clutch in. It didn't matter on the spring adjustment much for me. When I had the Saab BOV mod it didn't die.

 

[hvyman]

I have greddy type s. With it as loose as possible i get no stalling at all.

Make sure your isc is clean and working properly and it should catch itself.

 

[mk3supra978]

alright cool thanks guys appreciate it

 

[jrot]

its the BOV IMO thats doing it but if your fairly stock it could be your dashpot as well...check the tsrm for adjustment procedure....i think youll find its still the BOV

 

[mk3supra978]

so should i just get rid of the bov ? if i get rid of the bov wat should i use instead ?

 

[D.J.T.]

so should i just get rid of the bov ? if i get rid of the bov wat should i use instead ?

Stock By pass valve. Do you know what it looks like?

 

[mk3supra978]

i used to have that on there before i switched it out for my apexi bov

 

[D.J.T.]

i used to have that on there before i switched it out for my apexi bov

What kind of Turbo you running? If its a stocker i see no point in installing an Aftermarket BOV. lol

 

[mk3supra978]

ya i might just replace it for the saab bov

 

[D.J.T.]

ya i might just replace it for the saab bov

Its up to you what you want to do with your car. Personally id just leave the BPV. But each to their own!

 

[mk3supra978]

ya i might just do that bro..i think i have a boost or vac leak you know where i can go buy a tester ?

 

[mecevans]

Definitely get a new filter. The dirt will pit and crack the fins and then scratch your cylinder walls.

 

[jrot]

i have the bosch/porche/saab/audi BOV/BPV that i bought at a mazda dealership on mine....i dig it...seems to work well...only real benefit over stock that i can see is its metal internals over the stocks plastic internals...but the stock one is metal outside versus the plastic outside bosch...the bosch looks better in the engine bay to me though....