Auto Turn Off?

[SLY-25T]

Hey all

Got my R33 GTST S1 a few weeks back now and about 7 times since ive had it, it decides to turn off while driving. Not when at speed, but when shifting down or coming to a stop, the revs drop to below 500rpm, hunt for a bit then the car shuts off. happens pretty randomly.

Any ideas?

Cheers

Jaye

[phatlavish]

Are ya using an aftermarket BOV?

[fob33]

it would have to be aftermarket BOV.

[000DNK]

I had and have the same problem, its a aftermarket BOV but it can also happen if it stock but taht is mainly when you are turning because your power steering can occasionally over load the motor, thats at least what i hae been told...autos are not the only ones that do it thou manuels to

[Kujotk]

hahaha i had the same prob when comming up to roundabouts in my series 2 gtst manual...... i was told it could be a million things and i was lost...... in the end i chose the most common problems first..... clean the shit out of the AFM, clean the throttle boddy, and last but defiantely not the least important CHANGE THE SPARK PLUGS!!!!! I did these and the idle went up by it self and doesnt dip anymore and it also drives like a new car.... Do this first since they are cheap and easy to do your self and even a mechanic can do it for under $250 including Platinum NGK's if your lazy or dont wanna f**k it up...... then if that doesnt work sit down and try to figure out what else could cause this???? eg: i found a leak in one of my engine lines and i figured out if i took the line completely off the engine would stop, so if it was leaky it would make the car idle alittle starnger than usual.....

good luck

[scathing]

Leaking BOV (it doesn't necessarily need to be aftermarket) or a dirty AFM are the two most common causes for the issues you're experiencing.

Since everyone's covered the BOV, have you changed your air filter recently? A lot of people describe similar issues (along with the car running really sluggishly off the line) after they've cleaned a reusable filter, because they've over oiled it or haven't let it dry and some excess has ended up on the AFM sensor.

As an aside, you let the engine drop to 500RPM when changing down?

[SLY-25T]

hey all

thanx for the replys.

yeah i do have an aftermarket bov and a K&N pod but only put the pod on recently. i dont let it drop back down to 500 wen shifting down, i mean wen coming to a stop and just put foot on clutch and brake.

and yeah it happens more wen turning corners.

so is there anything i could do to stop this happening but keep the bov??

maybe get the idle pushed up a bit??

thanks

[FATAZZ]

whats wrong with using the original BOV?

[SLY-25T]

whats wrong with using the original BOV?

prefer the sound of the one i have one. sounds mean and make the engine bay look a lil better. lol. dont have the money to tidy it up yet.

[FATAZZ]

Wouldn't it be cheaper to tidy up the BOV now rather then a BOV combined with a defect or emmission test.

But hey,if the sound does that much for you, flutter away!

[(OO)SKYLINE(OO)]

prefer the sound of the one i have one. sounds mean and make the engine bay look a lil better. lol. dont have the money to tidy it up yet.

Aftermarket BOV do shit all.

Its just for noise, unless for racing applications when running high boost and the stock one cannot handle the pressure anymore.

I suggest you remove the aftermarket one and keep the standard one.

Also you have a Pod filter installed, it should give you the "Choo" noise, which sounds a lot better.

Cool!

BTW it don't cost anything to tidy up the engine bay, just wipe everything down with a damp cloth...

[colossus]

i mean wen coming to a stop and just put foot on clutch and brake.

and yeah it happens more wen turning corners.

so is there anything i could do to stop this happening but keep the bov??

maybe get the idle pushed up a bit??

My R34 auto does the same thing. I have a stock BOV (it dosnt leak). Everything has been cleaned or replaced, no boost leaks ect. I know aftermarket BOV's do give trouble but why everyone jumps to the conclusion that it must be the aftermarket BOV when just as many people have this issue with a stock car is beyond me...

I have simply come to the conclusion that skylines are a sensitive, nervous, high maintenence car that give you as much grief as happiness.

EDIT - I should note that in my case I am 99% certain I have traced this problem to the titronic computer being too slow to react to a quick stop and stalling in certain situations. This dosnt help you manual guys though.

Edited August 6, 2008 by colossus

[-= SKiZO =-]

My R34 auto does the same thing. I have a stock BOV (it dosnt leak). Everything has been cleaned or replaced, no boost leaks ect. I know aftermarket BOV's do give trouble but why everyone jumps to the conclusion that it must be the aftermarket BOV when just as many people have this issue with a stock car is beyond me...

As Scathing said, AFM is most commonly the other cause to hunting and turning off. Dry/brittle solder or dirty sensor. It's a do it yourself job, no need to buy a new one.