idol problems

hi , i have a 2000 model jimny ..the idol rpm keeps dropping and almost cuts out when stopped at traffic lights ect..idols between 450 - 900 i changed spark plugs and ignition leads but still the same .. can anyone give me a lead to my next move ?

an expert (like Martin) will be along soon ... but I'd be suspecting the Lamda Sensor on the exhaust ...

Ig it is the Lamda, then dont get one from Suzuki, unless your a rich-git, get an 'after-market' one if you can find it - Martin should be able to help there too?

mlines wrote: Grasping at straws but have you looked at the PCV valve (yellow thing on the manifold. If it is gungy/sticky it could give problems.
Remove it and clean it throroughly. Blow throug it and see if it works (you can blow one way and not the other), see if it works smoothly, if not then replace.

I had a similar issue (or the same) with a rough idle, I checked the PCV valve and replaced it as Martin suggested and it seemed to have fixed most of it, its now a LOT less rough at idle (idle doesnt drop like it used to, but still have another problem). It was a $22 (AUD) part.

Check my post here for the symptoms and fixes I tried

ok can u tell me where pcv valve is located , is it on the manifold
? thanx

i not sure where pcv valve located i have 2000 model ma , theres nothing yellow on the manifold

Top of engine without the plastic cover on it

Mine wasn't yellow either, but was white (now black) but the pic shows where it is. It just pulls out. Make sure there is no gunk visible, if so clean it. Shake it and make sure it rattles, its meant to. Try and blow into it both ways, should only be able to blow into it one way no matter how hard u blow. It can be cleaned (google cleaning pcv valve) but I would suggest replacing it if you have one of the above issues. Also check to see if its not too loose, should sit in the engine nice and firmly (mine didnt before).

thanx heaps for your help , i ordered valve -- fingers crossed when i put it in , i had a look at the valve it was pretty dirty but could only blow one way through it , ill try new valve and go from there..