Hi,
This vehicle isn't offered in the US, but I will try my best to help.
When there are variations in idle speed, the first thing to check for is engine vacuum leaks. Have you done that? If not, start there. Here is a link that shows how to do it:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
If none are found, I need to know if this has a separate fuel injector for each cylinder, one throttle body injector, or if it has a carburetor.
Let me know.
Joe
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Sunday, March 20th, 2022 AT 8:49 PM