How to match the throttle of Mercedes-Benz 272 engine

Matching method of throttle of Mercedes-Benz 272 engine;

After cleaning the throttle valve body, the vehicle equipped with electronic throttle usually has a high idle speed, and the engine speed generally fluctuates between 1200 ~ 1500. General methods, such as removing the negative wire of the battery, adaptive with load and driving for a few days, have no effect.

In fact, the method is very simple: 1, check the working parameters of the parts on the throttle body; Turn on the ignition switch, the opening of the throttle position sensor is generally between 17- 19%, and the voltage is between 0.85-0.95v After starting the engine, the idle speed will definitely be high! 2. Turn on the ignition switch and use the Honda special detector HDS to enter the engine system;

3. Select the "Inspection" function; 4. Select the "ETCS" item, perform the first step of throttle position sensor test according to the prompt, and then perform the second step of throttle position sensor matching function; 5. Turn off the ignition switch after performing the above functions; 6, start the engine, idle speed is normal.