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进气管压力传感器的检修

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Post time 2016-3-28 11:43:40 | Show the author posts only Reply Awards |Descending |Read mode
本帖最后由 占领五方礁 于 2016-3-30 08:53 编辑

(1) 进气管压力传感器电源电压检查
检查时拆下进气管压力传感器的线束插头,然后打开点火开关,但不要启动发动机。接着用电压表测量线束插头上电源端子和接地端子之间的电压,其值应符合规定(4~6V);否则应更换或修理其电控线路线束。

(2) 进气管压力传感器输出电压的检查
检查时拆下传感器与进气歧管相连接的真空软管,使传感器直接与大气相通,然后打开点火开关,但不要启动发动机,用电压表在电控单元线束插头处测量传感器的输出电压。
接着向传感器内施加真空,并测量在不同真空度下它的输出电压。该电压值应随真空度的增大而降低,其变化情况应符合规定,否则应更换传感器

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