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故障现象 一辆丰田凌志LS400高级轿车,将自动变速器换档杆挂入D档行驶时,按下设置在换档杆手柄处的超速档0/D开关后,车速不能像正常时那样随着加速踏板的踩下而自动加速到150km/h以上。当节气门全开时,最高车速只能达到120km/h,后来发现该车的最高车速又降到90km/h左右。
Symptom A Toyota Lexus LS400 sedan, the automatic transmission shift lever into the D gear when driving, set the gear lever handle at the overdrive 0 / D switch, the speed can not be as normal as with the acceleration Pedal pedal automatically accelerated to more than 150km / h. When the throttle is fully open, the maximum speed can only reach 120km / h, and later found that the maximum speed of the car down to 90km / h or so.