Popping Noise?

[Informer]

I hear this spluttering or popping noises when I'm downshifting or slowing down.

I only seem to notice it when I brought my car back to Australia, and its still there when I had the exhaust changed (though not as bad).

The mechanic told me that this is normal on most cars, just amplified on Skylines. Is that true?

[Johnny Cash]

Where did you bring it back to Australia from? Other countries have better fuel than we can get, so it might be that you're using a poorer grade of fuel.

Changing exhaust would help, because it wouldn't be as free flowing.

[cowie165]

Aren't popping sounds unburnt fuel particles combusting on hot exhaust pipes?

Does it happen right away or only once the motor is warm?

[LBR33]

As above its overfueling, a safc or powerfc can help to a degree

[_8OO5TED_]

an aftermarket blow off valve can also contribute, especially if it vents to atmo.....

my r33 gtst with a stainless cat back and a turbosmart veeport bov make very loud cracking/popping sounds off throttle.

[Modena]

an aftermarket blow off valve can also contribute, especially if it vents to atmo.....

my r33 gtst with a stainless cat back and a turbosmart veeport bov make very loud cracking/popping sounds off throttle.

yeah thats why.

mate has a1 200sx and it pops, he has a GFB BOV set to atmo. the car runs rich.

[HR32_GTS-T]

my r32 does the same thing. i think its just a normal thing that happens to skylines.

mine also does it wen i give it a bit through the gears then it stops.