A flickering check engine light with a rough idle usually points to an active engine misfire. Here are the most likely causes on a Jetour X90, what to check first, and whether you can keep driving.
If your Jetour X90 has a check engine light that flickers intermittently while the idle feels shaky, rough, or almost like it wants to stall, take it seriously. A steady check engine light often means a stored fault; a flickering or flashing light usually means the engine is misfiring right now. On a turbocharged direct-injection SUV like the X90, that can quickly overheat and damage the catalytic converter, so the goal is to find the misfire before it becomes an expensive repair.
