Often find the engine idle speed is too high or the red flag car tour car cleaning solar termdoor body. The original red flag car engine uses Siemens 4S3 control system, in the process of moving, due to dust and oil continuously adsorbed on the throttle, the opening degreeincreasing, the engine control unit and memory the best learning value. When the solar termdoor body is cleaned, the opening is smaller, but the engine control unit can not adapt to the current solar term door position, so the engine will produce high idle phenomenon, serious when still will have a tour car phenomenon.

Cairo said the solar term door can use the following method can eliminate the engine idle speed is too high and the travel car:

(1) VAG1551 (VAG1552) basis set method: connect the VAG1551 (VAG1552), switch on the ignition, the engine control unit into 01, 04 "basic settings" function, enter the 001 channel,press the accelerator pedal for about 3 seconds. Although this method is simple, but the success rate is not too high.

(2) adjustment potentiometer method: open the throttle body side cover, remove thepotentiometer on the limit, loosen the 3 screws, a slight adjustment potentiometer clockwiseposition, turn the ignition switch to the control unit, the actual location of the re recognition memory throttle. Repeat the above steps until the throttle to achieve the best position.

Cleaning method of Cairo the throttle body can find every month, remove the intake hose, the throttle is opened, use a napkin to clean; if the dust and oil too much, then gently wipe one or two times, must not remove too much (much to wipe the fault), running after a period of timeand then rub one or two after several times, after wiping the throttle back to normal.