Why is my 2018 1.6 manual transmission car having unstable idle when cold started?

Why does my 2008 imported Mazda 3 hatchback idle at 1200 RPM during cold starts, while it's usually at 1000 RPM? How can I fix this?

Have you ever experienced unstable idling? Any solutions to fix it?

Is anyone else experiencing unstable idling with the new BRZ? Even without the AC on, whether the car is cold or warm, the gauge needle fluctuates noticeably.

If the Haima S5 manual transmission shakes when starting without giving gas and runs at idle speed, what could be the reason?

How to solve the issue of no idle speed increase when starting a cold 2019 Renault Koleos?

Why is my 2018 1.6 manual transmission car having unstable idle when cold started?

My Peugeot 301 manual from 2016 has trouble starting when it's cold, but it starts easily when it's warm. What's going on?

Why does my 2021 manual Santana sometimes have no response when I try to start it, requiring several attempts to ignite?

What could cause a 2017 Jetta 1.5 manual to have engine shaking when cold and stuttering on idle start? It's only done 90,000 km. 😊

The 2012 Skoda Octavia 1.6 automatic makes a rattling noise during cold starts! There is a knocking sound when shifting gears!