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Home >> Mercedes Benz >> 1989 >> 560SL >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Tests W/O Codes >> Symptom Diagnosis >> Incorrect Fast Idle
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Incorrect Fast Idle

Check idle control system components, coolant temperature sensor, throttle position sensor, TDC sensor, electro-hydraulic actuator and differential pressure regulator, intake air temperature sensor and atmospheric pressure sensor.

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