Revs all over the place

[Adam 180 V6]

The revs on my 180 are all over the place, it's ticking over at 3k, when I change gear it's revving up, revving on its own, it's getting undrivable, any ideas?

[Skillen]

Sticking throttle cable/ butterfly
Air leak in any of the intake components past the IAVC.
Bad lambda?
Poor earth somewhere?
Worn/earthing loom?


Any lights thrown up?

[tb steve]

idle valve sticking just needs a clean

[Adam 180 V6]

idle valve sticking just needs a clean

Which is the idle valve? I've cleaned the bit on top of the throttle body and was fine but a week later it's doing this

[stamford]

http://www.themgzs.co.uk/vb/showthread.php?t=1293

Plus worth noting do not tighten the bolts up fully until you have actuated the valve into its seat to locate it, once done then tighten the bolts up.

Are the mating faces/gasket okay? Wouldn't take much to get erratic idling if a slight air leak.

[tb steve]

might help

http://www.themgzs.co.uk/vb/showthread.php?t=25486&page=3

[Adam 180 V6]

http://www.themgzs.co.uk/vb/showthread.php?t=1293

Plus worth noting do not tighten the bolts up fully until you have actuated the valve into its seat to locate it, once done then tighten the bolts up.

Are the mating faces/gasket okay? Wouldn't take much to get erratic idling if a slight air leak.

What does it mean by move the plunger 1mm. Back or forward or turn it round, don't wanna damege anything

[tb steve]

looks abit like this when you take it out but with a metal plunger

http://www.google.co.uk/imgres?sa=X&biw=1600&bih=799&tbm=isch&tbnid=uGRsp22-_a5F0M:&imgrefurl=http://forums.mg-rover.org/showthread.php%3Ft%3D469284&docid=1sS4UN9_lK0kRM&imgurl=http://i1054.photobucket.com/albums/s485/lovema75/Snapbucket/A150AD1F.jpg&w=768&h=1024&ei=aNHrUe3ZO4nQ7Aa4oIAo&zoom=1&ved=1t:3588,r:10,s:0,i:112&iact=rc&page=1&tbnh=183&tbnw=128&start=0&ndsp=31&tx=70&ty=90