Idle Difficulty On Series 2 R33...any Ideas???

[SIR33]

hey guys, idle is pefect apart from when i am coming to a stop with the clutch in...the idle drops to almost 0rpm and often does completely shut the engine off (stall). also it does get worse when the car has been driving for longer.

any ideas please????

[Steve]

can you give a bit more info? Mods?

[95GTST]

Stnd or aftermarket BOV?

[sfitzy]

lots of people have this exact problem. Have a look at the stick thread "THIS LOW RPM ENGINE STALLING SAGA POSSIBLY SORTED"

I have heard of people wiring the pump to run at full capacity all the time, turning up the idle speed, cleaning the AFM/AAC's and many more other solutions. Some people on skylines downunder even suggest that it is air reversion back through the AFM.

My car had the exact same problem and I have virtually changed the car back to stock and it still happens (but very rarely). I changed:

Turbosmart BOV Type III to Stock

Blitz pod to Stock air box with K&N air filter

Replaced the tiny battery with something more powerful

Changed all vacuum hoses

Adjusted the idle speed to about 850 rpm

Cleaned the AFM

My car rarely stalls and I'm happy with it, except the noisy lifters but I am going to fix that.

I have found that a stall is more likely to happen when I have my lights and lots of electrical gizmos going

[QuickR33Melb]

I found that problem when I installed an aftermarket BOV.

It was fixed when I installed a Apexi AFC.

[sweetr33]

Aftermarket bov's will cause that too happen initially coz they have a spring tension setting and obviously isnt set to your car or boost setting blah blah, when its adjusted correctly i dont beleive this stalling is an issue. Well my personal thoughts anyway

[SIR33]

how do u adjust your bov??? anybody???

[sfitzy]

depends on what type of BOV you are running....

[wados]

how do you adjust the idle speed control

[paulr33]

sir33: do you have the stock bov or an aftermarket one?

[SIR33]

i have a turbo smart type II bov but i'm still not positive thats the problem.

[NO_RSPECT]

thats the problem

are you running an afc

[paulr33]

put your stock bov back on and see if it stalls? :^)

however i *did* have this problem on my series II 33, had the stock bov on and it was never changed. no pod or anything, even stock exhaust. took it to workshop got a full retune and it was fine after that. i couldn't pull up at the lights without it stalling

[Gizmo73]

One other thing to possibly try is to clean the throttle body....

I had the same issue, gave it a major clean and its gone away...

[SIR33]

but there must be some way to have an aftermarket bov and not stall??? other people do. can u adjust the bov or do u need to tune it with the bov???