The engine idle speed is automatically maintained within the specified limits (800-900 rpm) rotary control on the commands of the controller.
Idle speed is checked with a warm engine (oil temperature not less than 80°С), with correctly adjusted gaps between the spark plug electrodes and set the initial ignition timing, with a clean air filter element, with the current consumers turned off, including the air conditioner, in the absence of fault codes in the memory of the controller self-diagnosis system. During the test, the engine cooling fan should not turn on. On vehicles with automatic transmission, the selector lever must be in the «R» or «N».
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