進氣管真空度的基本(ben)檢測(ce)方法

  （1）起動(dong)發動(dong)機，使其達到正常工作溫度；

  （2）然后將變速桿置于空(kong)檔，并使(shi)發動機(ji)空(kong)轉。

  （3）找到節氣門后面專門設置的進氣系統的真空檢測孔，并在那里連接真空計（如果沒有這樣的檢測孔，則可以拆卸進氣歧管上的真空管并使用三通 連接真空計），即可執行測試。

  進氣管真空異常對自動控制系統的影響

  由于(yu)(yu)進(jin)(jin)(jin)氣(qi)(qi)管(guan)的(de)真(zhen)空(kong)(kong)度(du)意(yi)味著發動(dong)(dong)機轉速和負(fu)荷的(de)大小，因此(ci)進(jin)(jin)(jin)氣(qi)(qi)管(guan)的(de)真(zhen)空(kong)(kong)度(du)變化意(yi)味著發動(dong)(dong)機的(de)速度(du)和負(fu)荷發生了變化，因此(ci)在(zai)電子控制汽車(che)中，負(fu)壓(ya)是(shi) 發動(dong)(dong)機進(jin)(jin)(jin)氣(qi)(qi)管(guan)用(yong)(yong)作(zuo)動(dong)(dong)力源，廣(guang)泛(fan)用(yong)(yong)于(yu)(yu)電子控制系(xi)(xi)統(tong)(tong)(tong)的(de)執行器及其他(ta)裝置，例(li)如進(jin)(jin)(jin)氣(qi)(qi)歧管(guan)的(de)膜片對壓(ya)力傳感器，燃(ran)油壓(ya)力調節器，曲(qu)軸箱強制通風系(xi)(xi)統(tong)(tong)(tong)，燃(ran)油蒸氣(qi)(qi)回收系(xi)(xi)統(tong)(tong)(tong)，廢氣(qi)(qi)再循(xun)環系(xi)(xi)統(tong)(tong)(tong) ，巡航(hang)控制系(xi)(xi)統(tong)(tong)(tong)真(zhen)空(kong)(kong)致動(dong)(dong)器和真(zhen)空(kong)(kong)助力器，用(yong)(yong)于(yu)(yu)制動(dong)(dong)系(xi)(xi)統(tong)(tong)(tong)。 如果(guo)進(jin)(jin)(jin)氣(qi)(qi)管(guan)的(de)真(zhen)空(kong)(kong)異常，將嚴重影響上述系(xi)(xi)統(tong)(tong)(tong)的(de)正常運行。