R33 Nearly Stalls!

[whiteye]

r33 gts25t with a to4e

just wondering is anyone else has had the same problem as me.

when im driving and have to stop quickly at a set of lights or an intersection the car nearly stalls and when driving up the hill then go to turn into my house it will stall unless i keep the revs up.

when i bought the car the guy said the blow off valve just needs to be tightened all the way and it will solve the problem. but iv done this and it didnt make a difference. a guy at a dyno tuning place told me that my intake pipe wasnt long enough but all my mates have said that that shouldnt matter.

my blow off valve is placed at the front right of the car just before where the pipe goes into the fmic. could this have anything to do with it as iv seen bov's placed just above the motor where the piping comes out.

can anyone help me please? some1 that has had the same problem would help?

[Kurt.P]

Ive got a similar, if not the same problem....when youve stopped, does your idle go up and down? i just bought my car, and thats what mine does...its the aftermarket BOV...putting the standard one back on will solve mine, i just havent done it yet.

[markdem]

trying cleaning the AAC valve. it lets a little extra air into the engine at idle/startup. they get dirty and dont work too nicely

[whiteye]

yea it goes up and down sounds like its cammed, until it stalls sometimes then its just embarrasing haha

[whiteye]

so i think it sounds like i need to get the blow off valve put back in the standard position?

[SKYNET]

Definately clean out the AAC valve at back of engine near the fire wall- its easy to to do & theres a tutorial with pics here somewhere

Solved my problem-black carbon deposits build up in it-blast it out with a can of carby cleaner & some extra big cotton buds-takes about an hour to do

[YoungMoney]

i had an Auto R33 with an Aftermarket blow off valve...if you dont keep the revs up it always stalled...embarrassing stalling a auto i tell you lol.... i replaced the BOV for the original factory one and it never did it again

[whiteye]

thanks heaps going to try cleaning the aac valve on the weekend and if that doesnt work will have to try doing something with the bov.

will let you know how i go.

[defari]

aac valve, check spark plugs, reset the ecu if its standard

not sure on the bov.... ive got an atmo bov mine never stalls..

[Kinks]

Mine occasionally does this, stock intake system. Everything's fine (spark plugs, ecu etc). Usually it happens when I am giving some steering input as well, I think the combination of dropping revs PLUS an emptying vacuum assist system is a bit quick for the ECU to keep up. For me it only happens when I come to a complete stop, the ECU maintains a higher idle point when the wheels are turning and only drops down to its base idle when you come to a complete stop.

[whiteye]

so today i cleaned aac valve and got it looking nice and clean then went for a drive to hopefully put a big smile on my face but it didnt make a difference to the rev hunting!

so i the stock bov will be going on when i get a chance.

so confused!

[045HOW]

i daresay your confusion will stop when that stock bov goes back on good luck.

[Kurt.P]

yeah i got the exact same problem lol, its really embarrasing, put the stock BOV and ti will be fixed

[StevenCJR31]

yep, sounds just like a vacuum leak

[whiteye]

how do i find out if i have a vacuum leak?

[DELLER]

I've talked to a couple of skyline lovers about this problem and they said it's could be one thing,

i strongly agree about some intake been short, of course you can make them longer and,

also put a couipe of bends into the intake.

What happens, when you change gears and because of your intake been short the

turbo blows air back through your intake and your AFM reads the air and the

computer dumps a lot of fuel into your engine but there is no air so you car stalls.

I hope you can understand what i mean.....And i don't your BOV is the issue....

Thats what i have been told.

[whiteye]

ok thanks for your help will try extending the intake a bit and see what happens

[045HOW]

I've talked to a couple of skyline lovers about this problem and they said it's could be one thing,

i strongly agree about some intake been short, of course you can make them longer and,

also put a couipe of bends into the intake.

What happens, when you change gears and because of your intake been short the

turbo blows air back through your intake and your AFM reads the air and the

computer dumps a lot of fuel into your engine but there is no air so you car stalls.

I hope you can understand what i mean.....And i don't your BOV is the issue....

Thats what i have been told.

ok thanks for your help will try extending the intake a bit and see what happens

That's bullshit, don't listen to that.

If that scenario were even true, it would only be true if you were dosing your engine. but you're not and the story is bullshit anyway.

Get a recirculating bov and move on.

making your intake longer is just stupid.

[iwanta34gtr]

Clean your AFM. Little black box hooked on to the piping connected to the air box.

I had the same issue with my old GTR and one of them was filthy.

Otherwise check your spark plugs, coil packs - etc.

[joeyjoejoejuniorshabadoo]

atmo bov will make the car stall in 99% of cases....

just ditch the pos and put a stock one on there. mine has been holding 300+rwkw on around 20psi for years now