What's the matter with Fiat's unstable idle speed over the weekend?

Possible reasons for Fiat's unstable idle speed during the weekend: 1, idle motor damage, ignition coil leakage, spark plug carbon deposition or breakdown damage, throttle carbon deposition;

2. Automobile fault diagnosis and elimination steps: use the automobile fault diagnosis instrument to query the fault code, determine the fault point and carry out maintenance;

3. Clean the throttle, remove the spark plug for cleaning or replacement, and check whether the ignition coil leaks. If replacement is required, check whether the idle motor is damaged and replace it.

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