Single Tick Noise

[shotter]

I have a R33 and I have noticed that if your working under the bonnet with the engine running. As soon as you touch the throttle you can hear a single tick noise. and of you rev the car sloftly it will keep ticking each time the throttle is moved from closed. I cant pin point where the noise is coming from, But i have a bad feeling it could be coming from the coil packs. It kinda sounds like a sparking noise. Any idea how you can test the coil packs to see if they are playing up. I pulled them all out and they looked fine, and the spark plugs looked fine too.

[and3_3]

I also have this, someone please explain!

[WHITE R32]

possible aftermarket blow off valve seating once the vacum drops off... my turbosmart one used to do this

[-Dukes-]

Yep... thats what they call the death noise,

Means you engine is gunna throw a piston in about 50km's time...

Just kidding, It's completely normal don't worry about it. I think it comes from the throttle butterfly or the acc, but I wouldn't worry about it.

as for your coil packs, if your car isn't misfiring they are fine.

I'f you really still want to find the noise get a stethoscope.

[89CAL]

If its an RB25 then its the VCT kicking in, does it wit a bit of a touch of the throttle

[shotter]

THANKS -DUKES- !!!!!!! LOVE YOUR WORK...... NOT haha

Yea it's a RB25. As long as people say it's a normal noise im happy with that.

[SLY-25T]

ive been told its something telling the computer that the accelerator has come off idle. im pretty sure all have it. may be quieter in others? nothing to worry about