1、氧(yang)(yang)(yang)含量分析儀是(shi)(shi)(shi)一(yi)種(zhong)多元(yuan)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)的(de)“報警(jing)(jing)器(qi)(qi)(qi)”氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)及(ji)其(qi)線路(lu)(lu)(lu)發(fa)(fa)(fa)作(zuo)(zuo)的(de)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)會(hui)被電(dian)(dian)控(kong)單元(yuan)（ECU）存儲(chu)并且(qie)報警(jing)(jing)。一(yi)旦氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)輸入ECU的(de)信號(hao)電(dian)(dian)壓＜0.45 V，或(huo)者信號(hao)電(dian)(dian)壓動搖的(de)頻(pin)率(lv)＜20次/min時(shi)，ECU就(jiu)斷(duan)定(ding)為可燃(ran)混合氣(qi)太稀(xi)，并且(qie)增(zeng)加噴油(you)量，使油(you)耗(hao)(hao)增(zeng)大，毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)燈(deng)點亮(liang)，同時(shi)存儲(chu)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)代(dai)(dai)碼。這種(zhong)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)屬于氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)的(de)“自(zi)生(sheng)(sheng)(sheng)性(xing)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)”。事實上(shang)，不(bu)(bu)只氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)發(fa)(fa)(fa)作(zuo)(zuo)自(zi)生(sheng)(sheng)(sheng)性(xing)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)時(shi)會(hui)報警(jing)(jing)，而且(qie)發(fa)(fa)(fa)作(zuo)(zuo)他(ta)生(sheng)(sheng)(sheng)性(xing)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)也會(hui)報警(jing)(jing)。所謂“他(ta)生(sheng)(sheng)(sheng)性(xing)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)”，是(shi)(shi)(shi)指(zhi)電(dian)(dian)控(kong)組(zu)件自(zi)身(shen)沒有毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)，是(shi)(shi)(shi)相關組(zu)件工作(zuo)(zuo)不(bu)(bu)良的(de)影(ying)響而惹起(qi)控(kong)制系統報警(jing)(jing)。例(li)如電(dian)(dian)動燃(ran)油(you)泵、燃(ran)油(you)濾(lv)清器(qi)(qi)(qi)、噴油(you)器(qi)(qi)(qi)、三效催化轉化器(qi)(qi)(qi)等(deng)發(fa)(fa)(fa)作(zuo)(zuo)了臟堵，嚴重(zhong)影(ying)響了空燃(ran)比（A/F）的(de)大小，毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)燈(deng)也點亮(liang)，毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)碼顯現為“氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)”，此(ci)時(shi)氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)自(zi)身(shen)其(qi)實并沒有損(sun)壞。從這個意義上(shang)說，氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)是(shi)(shi)(shi)發(fa)(fa)(fa)起(qi)機多元(yuan)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)的(de)“代(dai)(dai)言人”。因而，當電(dian)(dian)噴發(fa)(fa)(fa)起(qi)機呈現怠速不(bu)(bu)穩、缺火(huo)、喘(chuan)抖或(huo)者油(you)耗(hao)(hao)增(zeng)加等(deng)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)時(shi)，都應當調取并且(qie)解讀毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)代(dai)(dai)碼，很可能顯現“氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)”。但是(shi)(shi)(shi)，顯現“氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)”毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)代(dai)(dai)碼并不(bu)(bu)一(yi)定(ding)就(jiu)是(shi)(shi)(shi)氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)自(zi)身(shen)損(sun)壞，線路(lu)(lu)(lu)短路(lu)(lu)(lu)、斷(duan)路(lu)(lu)(lu)或(huo)者ECU內(nei)部(bu)控(kong)制電(dian)(dian)路(lu)(lu)(lu)有問題(ti)也會(hui)輸出同樣的(de)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)代(dai)(dai)碼。因而，當顯現“氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)損(sun)壞”毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)碼時(shi)，應當停止(zhi)綜合剖析和判別，辨明是(shi)(shi)(shi)氧(yang)(yang)(yang)傳(chuan)感器(qi)(qi)(qi)的(de)自(zi)生(sheng)(sheng)(sheng)性(xing)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)還是(shi)(shi)(shi)他(ta)生(sheng)(sheng)(sheng)性(xing)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)，以(yi)肯定(ding)毛(mao)(mao)(mao)(mao)(mao)病(bing)(bing)(bing)(bing)的(de)詳細部(bu)位(wei)。

　　2、氧含量分析儀怕鉛中(zhong)毒(du)和硅(gui)(gui)中(zhong)毒(du)氧傳(chuan)感器的正常顏色(se)是淡灰色(se)，經過察看氧傳(chuan)感器頂端工作(zuo)面的顏色(se)，能夠判別氧傳(chuan)感器能否因鉛中(zhong)毒(du)、硅(gui)(gui)中(zhong)毒(du)或者積碳堆積過多而損(sun)壞。

　　⑴頂端(duan)工作面呈棕色(se)(se)。這是由“鉛(qian)中毒”惹(re)起的(de)(de)顏色(se)(se)。有(you)材料(liao)顯現(xian)，運用(yong)含(han)鉛(qian)汽油只需行駛(shi)500 km，鉛(qian)化(hua)(hua)物就會(hui)粘(zhan)附在(zai)氧(yang)傳感(gan)(gan)器(qi)(qi)的(de)(de)工作面上，使氧(yang)傳感(gan)(gan)器(qi)(qi)根本喪失信息反應功用(yong)。無論氧(yang)化(hua)(hua)鋯(gao)式(shi)氧(yang)傳感(gan)(gan)器(qi)(qi)還是氧(yang)化(hua)(hua)鈦式(shi)氧(yang)傳感(gan)(gan)器(qi)(qi)，都怕廢(fei)氣中的(de)(de)鉛(qian)化(hua)(hua)物和碳(tan)化(hua)(hua)物的(de)(de)污染和掩(yan)蓋。汽車一旦運用(yong)了含(han)鉛(qian)汽油或者發起機“燒機油”，由于(yu)鉛(qian)化(hua)(hua)物和碳(tan)化(hua)(hua)物的(de)(de)掩(yan)蓋，氧(yang)傳感(gan)(gan)器(qi)(qi)的(de)(de)信號電壓突變特性立刻失準，響應速度降低到10s內少于(yu)8次，并且報警顯現(xian)，此時(shi)只能(neng)改換(huan)新的(de)(de)氧(yang)傳感(gan)(gan)器(qi)(qi)。

　　⑵無錫徽(hui)科特頂端工作面呈白(bai)色。這是(shi)由于在(zai)維修發(fa)(fa)(fa)(fa)起(qi)機(ji)時運用(yong)(yong)了(le)(le)(le)硅(gui)(gui)密封膠、硅(gui)(gui)密封圈等惹起(qi)的(de)“硅(gui)(gui)中(zhong)毒(du)”。硅(gui)(gui)膠中(zhong)含有醋酸（它(ta)起(qi)硫化(hua)作用(yong)(yong)），當醋酸硅(gui)(gui)膠應用(yong)(yong)在(zai)有機(ji)油活動的(de)部位，醋酸蒸發(fa)(fa)(fa)(fa)，進入曲軸箱(xiang)，經(jing)過(guo)廢氣(qi)(qi)(qi)再(zai)循環系(xi)統又(you)進入氣(qi)(qi)(qi)缸(gang)，經(jing)過(guo)排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)排(pai)(pai)(pai)出(chu)而損壞氧(yang)(yang)(yang)傳(chuan)感(gan)器(qi)(qi)。另(ling)外，假(jia)如(ru)汽(qi)油和機(ji)油中(zhong)含有的(de)硅(gui)(gui)化(hua)合物過(guo)多，熄(xi)滅(mie)后(hou)生(sheng)成(cheng)二氧(yang)(yang)(yang)化(hua)硅(gui)(gui)（SiO2），也(ye)會使(shi)氧(yang)(yang)(yang)傳(chuan)感(gan)器(qi)(qi)“中(zhong)毒(du)”失效。一(yi)(yi)輛大宇王子（PRINCE）轎車大修發(fa)(fa)(fa)(fa)起(qi)機(ji)以后(hou)，試車時一(yi)(yi)切正(zheng)常，只是(shi)排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)接口墊(dian)有點漏(lou)氣(qi)(qi)(qi)，自制了(le)(le)(le)一(yi)(yi)個厚石棉(mian)墊(dian)，裝車后(hou)排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)不(bu)再(zai)漏(lou)氣(qi)(qi)(qi)，可是(shi)發(fa)(fa)(fa)(fa)起(qi)機(ji)預(yu)熱后(hou)聞到一(yi)(yi)種(zhong)怪味(wei)，之后(hou)又(you)呈現怠速不(bu)穩和加速不(bu)良現象，同時毛病(bing)(bing)燈點亮。經(jing)過(guo)檢(jian)查(cha)，顯現毛病(bing)(bing)碼13，即氧(yang)(yang)(yang)傳(chuan)感(gan)器(qi)(qi)毛病(bing)(bing)。改換(huan)氧(yang)(yang)(yang)傳(chuan)感(gan)器(qi)(qi)和火花塞都無效，還用(yong)(yong)尾(wei)氣(qi)(qi)(qi)剖析儀檢(jian)測了(le)(le)(le)尾(wei)氣(qi)(qi)(qi)各成(cheng)分的(de)含量。思索(suo)到毛病(bing)(bing)是(shi)在(zai)改換(huan)了(le)(le)(le)排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)接口石棉(mian)墊(dian)后(hou)呈現的(de)，該墊(dian)片位于氧(yang)(yang)(yang)傳(chuan)感(gan)器(qi)(qi)的(de)前方(fang)，而且相距(ju)很(hen)近，疑心石棉(mian)中(zhong)的(de)某種(zhong)成(cheng)分污染了(le)(le)(le)氧(yang)(yang)(yang)傳(chuan)感(gan)器(qi)(qi)，于是(shi)換(huan)回原來的(de)排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)墊(dian)片實驗，結果(guo)毛病(bing)(bing)不(bu)再(zai)呈現。這闡明石棉(mian)墊(dian)在(zai)高(gao)溫(wen)條件下有二氧(yang)(yang)(yang)化(hua)硅(gui)(gui)（SiO2）或(huo)者其他有機(ji)硅(gui)(gui)氣(qi)(qi)(qi)體分發(fa)(fa)(fa)(fa)出(chu)來，形(xing)成(cheng)氧(yang)(yang)(yang)傳(chuan)感(gan)器(qi)(qi)硅(gui)(gui)中(zhong)毒(du)。

　　⑶頂端工作面呈黑色。這(zhe)是由積碳(tan)惹(re)起的顏色，當積碳(tan)堆積過多時，會影響氧含(han)量分析儀反應信息的靈(ling)活(huo)度。