rough idle on vt

[craig_stato]

hey guys, just a small prob with my vt, i have noticed it sionce the day i drove out of the car yard, when im at the lights, if im in drive, the car seems to vibrate, almost like the magnas do when there engine mounts are gone, and if i put it in neutral, it seems to have a missfire.the engine has only done 140k and it was only serviced recently including new plugs.
could it just be my leads?

 

[minux]

Could be leads, could also be worn mounts, check it al out

 

[EXCESSV]

could be the purge hose.
very common problem.

the link is
http://forums.justcommodores.com.au/showthread.php?p=196471#post196471

i have pics there too so look for posts that i put up

 

[B J]

Clean your throttle body too

 

[grafxworld]

Mine feels rough but the motor mounts are shot, so bad it's causing the knock sensors right next to them to pick up the vibrations on highspeeds and shut the motor down for a split second. very annoying and needs fixed soon.

 

[accentstencil]

Mine feels rough but the motor mounts are shot, so bad it's causing the knock sensors right next to them to pick up the vibrations on highspeeds and shut the motor down for a split second. very annoying and needs fixed soon.

Better get them replaced, only about $55 each from Repco. I replaced one recently and now it feels great. Smooth as silk.

 

[wal]

purge hose

check yhe purge hose my did the same got it tuned $300 a week later same problem this time i clamped it on for free.....col:w00t:

 

[DARGAN]

Mine feels rough but the motor mounts are shot, so bad it's causing the knock sensors right next to them to pick up the vibrations on highspeeds and shut the motor down for a split second. very annoying and needs fixed soon.

When you say it shuts the motor down for a split second, do you mean it like comes back on or do you have to start it up again?

I'd presume start it up again, i have the same problem with my VT shuts down randomly although its mainly at lights, does happen on the move! :bang: also a fair few times just after filling the tank. Driving me crazy. also whats a missfire?

 

[TigerVX]

Could be the Idle Air Control (IAC).