(1)起(qi)動發動機,使其達到(dao)正常工(gong)作溫度;
(2)然后將變速桿(gan)置于(yu)空檔,并使(shi)發動機空轉。
(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(you)于(yu)進氣(qi)管(guan)(guan)的(de)(de)真(zhen)(zhen)空(kong)度意味(wei)著發動(dong)機轉(zhuan)速和(he)負荷的(de)(de)大小,因(yin)此進氣(qi)管(guan)(guan)的(de)(de)真(zhen)(zhen)空(kong)度變化意味(wei)著發動(dong)機的(de)(de)速度和(he)負荷發生了(le)變化,因(yin)此在(zai)電子控(kong)制汽車(che)中(zhong),負壓(ya)是 發動(dong)機進氣(qi)管(guan)(guan)用作(zuo)動(dong)力源,廣泛用于(yu)電子控(kong)制系(xi)(xi)(xi)(xi)統(tong)(tong)的(de)(de)執(zhi)行(xing)器及其(qi)他(ta)裝置,例如(ru)進氣(qi)歧(qi)管(guan)(guan)的(de)(de)膜片對壓(ya)力傳感器,燃油(you)壓(ya)力調(diao)節器,曲軸箱強制通(tong)風系(xi)(xi)(xi)(xi)統(tong)(tong),燃油(you)蒸氣(qi)回收系(xi)(xi)(xi)(xi)統(tong)(tong),廢氣(qi)再(zai)循環系(xi)(xi)(xi)(xi)統(tong)(tong) ,巡航控(kong)制系(xi)(xi)(xi)(xi)統(tong)(tong)真(zhen)(zhen)空(kong)致(zhi)動(dong)器和(he)真(zhen)(zhen)空(kong)助力器,用于(yu)制動(dong)系(xi)(xi)(xi)(xi)統(tong)(tong)。 如(ru)果進氣(qi)管(guan)(guan)的(de)(de)真(zhen)(zhen)空(kong)異常,將(jiang)嚴(yan)重影響(xiang)上述系(xi)(xi)(xi)(xi)統(tong)(tong)的(de)(de)正(zheng)常運行(xing)。