Hi, new to the forum.
We have a 2006 Honda Jazz with 1.5 Lt engine (L15A1)
CVT trans. engine done 105,000kms.
Been serviced regularly and not flogged.

It has developed a low RPM mis ie. when you take off from idle it stumbles.
Once you are going it seems to run fine.

The other problem is when it's warm it wants to idle around 1800 RPM.

You can tap the accelerator and it will drop down to about 800 RPM but
with in a few seconds it jumps back up again.

My question is are they tied together or are they 2 different problems.

And what are the fixes.

Many thanks for any advice

 

With that many miles first thing is the plugs have they been changed? Then coil packs do you have a MIL? Last and surely needed valve clearance adjustment. We need more details. And there are a BUNCH of threads on your problem look around in here a bit.