What Makes A Car Stall Whilst In Neutral?

[blah_blah]

Hi all,

I've noticed recently that when putting the car in neutral and coasting up the driveway from the road that in the last 2 weeks that the car would stall 1/2 way up the incline of the driveway.

Is there something wrong with the car? This hasn't ever happened to me in 5 years of ownership.

Didn't know you could stall cars whilst in a neutral gear?

[StealthX]

aftermarket BOV?

little more info on the car helps dude lol

We're not mind readers.

[blah_blah]

Whoops!

Car is a 1998 r34 gtt

Mods: turbo back exhaust, hybrid fmic, nistune ecu, and apexi panel filter. That's it. Stock

bov.

Could it be perhaps be the hot weather? Only started to do it in the last two weeks? Never had happened before. And always happens on this particular driveway. Never happens when I go into my parents house in neutral which I have done for the last 5 years

[mad082]

the ecu controls the idle via the IAC and AAC valves. these control the amount of air going into the engine to keep the idle right. if these get sticky or a bit blocked then the ecu can't control the idle properly. cleaning them with carby cleaner would be the first thing to try.

other things to possibly look at though would be the spark plugs, coils, AFM, 02 sensor or even injectors, however i'd start with the IAC/AAC valve and then look at the spark plugs if it is still doing it.

[StealthX]

Yeah follow the DIY in the Tutorial section on how to clean your idle valve. Or if you have a laptop and nistune software, have a play around with the idle control...

[blah_blah]

Thanks for the help guys, will look into it when I have somefree time

[Tony de Wonderful]

If it only does it on an incline then sounds like some sort of fueling problem? Surge or starvation?

[blah_blah]

In only happens on an incline and also seems to be only in hot weather. As it didn't stall when I did the same thing at night..

I always put the car in neutral at the traffic lights and it has never stalled before.