上(shang)(shang)述現(xian)象基本可以判定故障來自燃油(you)(you)泵(beng)的(de)(de)控制(zhi)電路。經(jing)檢(jian)查(cha)發現(xian)位于發動(dong)(dong)機(ji)艙的(de)(de)保(bao)(bao)險盒中(zhong)(zhong)31號燃油(you)(you)泵(beng)保(bao)(bao)險絲(si)熔斷。換上(shang)(shang)新的(de)(de)保(bao)(bao)險絲(si)，打開點火開關（不啟動(dong)(dong)發動(dong)(dong)機(ji)），聽到(dao)燃油(you)(you)泵(beng)有運(yun)轉(zhuan)(zhuan)(zhuan)的(de)(de)聲因，但運(yun)轉(zhuan)(zhuan)(zhuan)幾秒鐘就停轉(zhuan)(zhuan)(zhuan)了(le)，同(tong)時(shi)，啟動(dong)(dong)發動(dong)(dong)機(ji)時(shi)還不著車，出(chu)油(you)(you)管也不出(chu)油(you)(you)，再看(kan)保(bao)(bao)險絲(si)又熔斷了(le)；再換上(shang)(shang)保(bao)(bao)險絲(si)，以上(shang)(shang)現(xian)象重(zhong)復出(chu)現(xian)。用中(zhong)(zhong)間(jian)加(jia)裝(zhuang)保(bao)(bao)險絲(si)的(de)(de)導線直(zhi)接(jie)把蓄電池與燃油(you)(you)泵(beng)正極線連接(jie)起來，油(you)(you)泵(beng)運(yun)轉(zhuan)(zhuan)(zhuan)約幾秒鐘又停轉(zhuan)(zhuan)(zhuan)，導線上(shang)(shang)的(de)(de)保(bao)(bao)險絲(si)熔斷。
穩(wen)定絲易燒(shao)毀講解汽柴油(you)閥(fa)錢路有搭鐵(tie)這種(zhong)(zhong)現狀(zhuang)。可是(shi)從油(you)閥(fa)不錯(cuo)行(xing)駛的這種(zhong)(zhong)現狀(zhuang)查出，搭鐵(tie)器(qi)官不汽柴油(you)閥(fa)正極錢路，串(chuan)電位子(zi)或者用(yong)得電子(zi)產品。用(yong)萬用(yong)表(biao)檢修，測是(shi)汽柴油(you)閥(fa)電機(ji)轉子(zi)的電阻功率十分小，比較接近(jin)于串(chuan)電，拆(chai)解油(you)槽(cao)開(kai)關(guan)，看到油(you)槽(cao)開(kai)關(guan)里十分臟。因為根本原因說是(shi)這類膠狀(zhuang)臟物。
在換洗柴油(you)(you)空氣濾芯器和擦拭油(you)(you)缸并(bing)換洗柴油(you)(you)泵(beng)后，系統(tong)故障齊(qi)全確診。
