China Naming Network - Naming consultation - At 250 thousand spring breeze, the idle speed of oil return rises and falls.

At 250 thousand spring breeze, the idle speed of oil return rises and falls.

Check whether there is throttle oil storage or throttle carbon deposit.

Causes of engine idle speed fluctuation:

1, throttle oil accumulation, throttle carbon accumulation, unclean intake and poor intake will all cause idle speed to rise, and throttle carbon accumulation or engine oil is a common cause of idle speed instability; 2. The spark plugs caused by individual spark plug failures are too weak; 3. The oil circuit represented by the choke is blocked and the air inlet pipe is faulty; 4. Related sensor failure Related sensor failure will make ECU unable to control the correct air-fuel ratio; 5 ignition advance angle is too large or too small. The idle speed of automobile engine is a problem of various signal sensors, such as intake air flow sensor, Hall sensor, knock sensor and coolant temperature sensor. , need to be combined with the detector for analysis.

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