{"id":48384,"date":"2026-10-20T23:58:27","date_gmt":"2026-10-20T20:58:27","guid":{"rendered":"https:\/\/diagnozabam.ro\/sfaturi\/?p=48384"},"modified":"2026-10-20T23:58:27","modified_gmt":"2026-10-20T20:58:27","slug":"sonda-lambda-defecta-nu-o-schimba-inainte-de-asta","status":"publish","type":"post","link":"https:\/\/diagnozabam.ro\/sfaturi\/ro\/blog\/sonda-lambda-defecta-nu-o-schimba-inainte-de-asta\/","title":{"rendered":"Sonda Lambda Defect\u0103? Nu O Schimba \u00cenainte De Asta"},"content":{"rendered":"<h2 dir=\"ltr\">Sonda lambda defect\u0103: cum o verifici \u00eenainte s-o schimbi<\/h2>\n<p dir=\"ltr\">Lampa motor se aprinde. Consumul cre\u0219te. Ralantiul pulseaz\u0103. Verdictul vine repede, direct din parcare: \u201ee sonda lambda\u201d. Uneori chiar e. Mult mai des, sonda doar \u00ee\u021bi spune adev\u0103rul despre o problem\u0103 din alt\u0103 parte.<\/p>\n<p dir=\"ltr\">Dac\u0103 schimbi sonda f\u0103r\u0103 test, pl\u0103te\u0219ti o pies\u0103 \u0219i defectul r\u0103m\u00e2ne. Clientul te sun\u0103 din nou dup\u0103 o s\u0103pt\u0103m\u00e2n\u0103. Scenariul se repet\u0103 mai des dec\u00e2t crezi.<\/p>\n<p dir=\"ltr\">Ghidul de fa\u021b\u0103 arat\u0103 cum verifici sonda \u00een aproximativ zece minute. Ai nevoie de un tester cu live data \u0219i de pu\u021bin\u0103 rutin\u0103.<\/p>\n<hr \/>\n<h3 dir=\"ltr\">Ce face, de fapt, sonda lambda<\/h3>\n<p dir=\"ltr\">Sonda m\u0103soar\u0103 c\u00e2t oxigen r\u0103m\u00e2ne \u00een gazele de e\u0219apament. Calculatorul folose\u0219te aceast\u0103 informa\u021bie ca s\u0103 corecteze injec\u021bia. \u021ainta este un amestec de aproximativ 14,7 p\u0103r\u021bi aer la o parte benzin\u0103. Acest amestec se nume\u0219te lambda 1,00.<\/p>\n<p dir=\"ltr\">Sonda nu comand\u0103 nimic. Ea doar raporteaz\u0103. Calculatorul decide c\u00e2t combustibil adaug\u0103 sau scoate. Re\u021bine asta, pentru c\u0103 de aici porne\u0219te toat\u0103 diagnoza.<\/p>\n<p dir=\"ltr\">Dac\u0103 sonda raporteaz\u0103 \u201eamestec s\u0103rac\u201d, problema poate fi real\u0103. Motorul poate primi prea mult aer sau prea pu\u021bin combustibil. Sonda nu gre\u0219e\u0219te \u00een acest caz. Ea \u00ee\u021bi arat\u0103 simptomul, nu cauza.<\/p>\n<hr \/>\n<h3 dir=\"ltr\">Tipurile de sond\u0103 pe care le \u00eent\u00e2lne\u0219ti<\/h3>\n<p dir=\"ltr\">Nu toate sondele arat\u0103 la fel \u00een live data. Trebuie s\u0103 \u0219tii ce tip ai \u00een fa\u021b\u0103, altfel cite\u0219ti gre\u0219it graficul.<\/p>\n<div dir=\"ltr\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Tip<\/th>\n<th scope=\"col\">Semnal<\/th>\n<th scope=\"col\">Unde apare<\/th>\n<th scope=\"col\">Ce vezi \u00een live data<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Band\u0103 \u00eengust\u0103<\/td>\n<td>Tensiune \u00eentre 0,1 \u0219i 0,9 V<\/td>\n<td>Ma\u0219ini mai vechi, sonda de dup\u0103 catalizator<\/td>\n<td>Zig-zag \u00een jurul valorii de 0,45 V<\/td>\n<\/tr>\n<tr>\n<td>Band\u0103 larg\u0103<\/td>\n<td>Curent mic, afi\u0219at ca lambda<\/td>\n<td>Majoritatea benzinelor recente \u0219i multe diesel<\/td>\n<td>Valoare stabil\u0103, aproape de 1,00 la ralanti<\/td>\n<\/tr>\n<tr>\n<td>Sonda de dup\u0103 catalizator<\/td>\n<td>Semnal aproape plat<\/td>\n<td>Dup\u0103 catalizator<\/td>\n<td>Linie lini\u0219tit\u0103, \u00eentre 0,5 \u0219i 0,7 V<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote dir=\"ltr\">\n<p dir=\"ltr\">\u2139\ufe0f <strong>Not\u0103 tehnic\u0103:<\/strong> \u00cen coduri apar formulele B1S1 \u0219i B1S2. \u201eB\u201d vine de la banc\u0103, adic\u0103 r\u00e2ndul de cilindri. \u201eS\u201d vine de la senzor. B1S1 este sonda dinaintea catalizatorului. B1S2 este cea de dup\u0103. Pe motoarele \u00een V mai apare \u0219i banca 2.<\/p>\n<\/blockquote>\n<p dir=\"ltr\">Sonda dinaintea catalizatorului ajut\u0103 la dozarea combustibilului. Sonda de dup\u0103 verific\u0103 dac\u0103 catalizatorul \u00ee\u0219i face treaba. De aceea au comportamente diferite.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"cWEdaYD0q0\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/ro\/blog\/bateria-se-descarca-peste-noapte-gaseste-vinovatul\/\">Bateria se descarc\u0103 peste noapte? G\u0103se\u0219te vinovatul<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201eBateria se descarc\u0103 peste noapte? G\u0103se\u0219te vinovatul\u201d \u2013 Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/ro\/blog\/bateria-se-descarca-peste-noapte-gaseste-vinovatul\/embed\/#?secret=PAiZM6qRsu#?secret=cWEdaYD0q0\" data-secret=\"cWEdaYD0q0\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<hr \/>\n<h3 dir=\"ltr\">Simptomele unei sonde lambda defecte<\/h3>\n<p dir=\"ltr\">Sonda uzat\u0103 sau lent\u0103 nu stric\u0103 motorul peste noapte. Defectul apare treptat. Iat\u0103 semnele frecvente:<\/p>\n<ul dir=\"ltr\">\n<li>lampa motor aprins\u0103, cu coduri legate de sond\u0103 sau de amestec<\/li>\n<li>consum de combustibil mai mare dec\u00e2t de obicei<\/li>\n<li>ralanti instabil sau care \u201epulseaz\u0103\u201d<\/li>\n<li>lips\u0103 de putere la accelerare<\/li>\n<li>miros de ou\u0103 clocite din e\u0219apament<\/li>\n<li>analiza gazelor picat\u0103 la ITP, cu CO ridicat<\/li>\n<li>pornire mai grea la cald, la unele ma\u0219ini<\/li>\n<\/ul>\n<p dir=\"ltr\">Niciun simptom nu e exclusiv al sondei. Acela\u0219i tablou apare la un MAF murdar sau la o priz\u0103 de aer fals\u0103. De aceea testezi \u00eenainte s\u0103 schimbi.<\/p>\n<hr \/>\n<h3 dir=\"ltr\">Codurile care apar cel mai des<\/h3>\n<div dir=\"ltr\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Cod<\/th>\n<th scope=\"col\">Ce \u00eenseamn\u0103<\/th>\n<th scope=\"col\">Ce verifici \u00eent\u00e2i<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>P0130\u2013P0134<\/td>\n<td>Probleme \u00een circuitul sondei B1S1<\/td>\n<td>Cablaj, conector, sonda<\/td>\n<\/tr>\n<tr>\n<td>P0135<\/td>\n<td>\u00cenc\u0103lzitor defect, B1S1<\/td>\n<td>Rezisten\u021ba \u00eenc\u0103lzitorului, siguran\u021ba<\/td>\n<\/tr>\n<tr>\n<td>P0136\u2013P0139<\/td>\n<td>Probleme la sonda B1S2<\/td>\n<td>Cablaj \u0219i starea sondei<\/td>\n<\/tr>\n<tr>\n<td>P0141<\/td>\n<td>\u00cenc\u0103lzitor defect, B1S2<\/td>\n<td>Rezisten\u021ba \u00eenc\u0103lzitorului<\/td>\n<\/tr>\n<tr>\n<td>P0171 \/ P0172<\/td>\n<td>Amestec s\u0103rac \/ bogat<\/td>\n<td>Aer fals, MAF, injectoare<\/td>\n<\/tr>\n<tr>\n<td>P0420<\/td>\n<td>Eficien\u021b\u0103 sc\u0103zut\u0103 a catalizatorului<\/td>\n<td>Scurgeri la evacuare, sonda B1S2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote dir=\"ltr\">\n<p dir=\"ltr\">\u2139\ufe0f <strong>Not\u0103 tehnic\u0103:<\/strong> Codul P0420 este adesea pus pe seama catalizatorului. Foarte des, cauza e o scurgere pe \u021beava de e\u0219apament sau o sond\u0103 obosit\u0103. Verific\u0103 acestea \u00eenainte de piesa scump\u0103.<\/p>\n<\/blockquote>\n<hr \/>\n<h3 dir=\"ltr\">De ce sonda nu e mereu vinovat\u0103<\/h3>\n<p dir=\"ltr\">Sonda cite\u0219te gazele care trec pe l\u00e2ng\u0103 ea. Dac\u0103 gazele sunt \u201egre\u0219ite\u201d, citirea reflect\u0103 problema real\u0103. Iat\u0103 cauzele care p\u0103c\u0103lesc diagnosticul:<\/p>\n<ul dir=\"ltr\">\n<li><strong>Aer fals \u00een admisie.<\/strong> Un furtun cr\u0103pat sau o garnitur\u0103 uzat\u0103 produce amestec s\u0103rac real.<\/li>\n<li><strong>MAF murdar sau defect.<\/strong> Calculatorul crede c\u0103 intr\u0103 mai mult sau mai pu\u021bin aer dec\u00e2t \u00een realitate.<\/li>\n<li><strong>Presiune de combustibil gre\u0219it\u0103.<\/strong> Injectoarele dozeaz\u0103 prost, iar sonda semnaleaz\u0103.<\/li>\n<li><strong>Scurgere pe e\u0219apament, \u00eenaintea sondei.<\/strong> Aerul din exterior intr\u0103 \u00een \u021beav\u0103. Sonda cite\u0219te \u201es\u0103rac\u201d, de\u0219i amestecul e corect.<\/li>\n<li><strong>Rateuri de aprindere.<\/strong> Bujiile sau bobinele slabe las\u0103 oxigen nears \u00een evacuare. Sonda crede c\u0103 amestecul e s\u0103rac.<\/li>\n<li><strong>Contaminarea sondei.<\/strong> Antigelul, uleiul sau siliconul din etan\u0219an\u021bi \u00eei distrug elementul.<\/li>\n<\/ul>\n<p dir=\"ltr\">Regula e simpl\u0103. Dac\u0103 trimurile de combustibil sunt departe de zero, caut\u0103 mai \u00eent\u00e2i o cauz\u0103 mecanic\u0103. Sonda vine pe locul doi.<\/p>\n<hr \/>\n<h3 dir=\"ltr\">Testul \u00een zece minute, cu testerul<\/h3>\n<h4 dir=\"ltr\">Pasul 1: cite\u0219te codurile \u0219i freeze frame<\/h4>\n<p dir=\"ltr\">Noteaz\u0103 codurile active \u0219i pe cele stocate. Uit\u0103-te la datele din freeze frame. Ele arat\u0103 \u00een ce condi\u021bii a ap\u0103rut defectul: tura\u021bie, temperatur\u0103, sarcin\u0103. Acest detaliu \u00ee\u021bi spune dac\u0103 problema apare la rece sau la cald.<\/p>\n<h4 dir=\"ltr\">Pasul 2: \u00eenc\u0103lze\u0219te motorul<\/h4>\n<p dir=\"ltr\">Sonda cu band\u0103 \u00eengust\u0103 lucreaz\u0103 corect doar fierbinte. Las\u0103 motorul la temperatura de lucru. Verific\u0103 \u00een live data c\u0103 ECU-ul a intrat \u00een regim de bucl\u0103 \u00eenchis\u0103. Dac\u0103 nu a intrat, testul nu are sens.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"h85Iisf22H\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/ro\/blog\/inregistrarea-bateriei-bms-ghid-dupa-schimbare\/\">\u00cenregistrarea bateriei (BMS): ghid dup\u0103 schimbare<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201e\u00cenregistrarea bateriei (BMS): ghid dup\u0103 schimbare\u201d \u2013 Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/ro\/blog\/inregistrarea-bateriei-bms-ghid-dupa-schimbare\/embed\/#?secret=k7r9LPCIsz#?secret=h85Iisf22H\" data-secret=\"h85Iisf22H\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h4 dir=\"ltr\">Pasul 3: deschide grafice pentru trei valori<\/h4>\n<p dir=\"ltr\">Alege \u00een live data:<\/p>\n<ul dir=\"ltr\">\n<li>tensiunea sau lambda sondei B1S1<\/li>\n<li>corec\u021bia de combustibil pe termen scurt (STFT)<\/li>\n<li>corec\u021bia de combustibil pe termen lung (LTFT)<\/li>\n<\/ul>\n<p dir=\"ltr\">Pune-le pe acela\u0219i grafic. A\u0219a vezi imediat rela\u021bia dintre ele.<\/p>\n<h4 dir=\"ltr\">Pasul 4: testul de frecven\u021b\u0103 la 2.500 rpm<\/h4>\n<p dir=\"ltr\">Men\u021bine tura\u021bia la 2.500 rpm, aproximativ un minut. La o sond\u0103 cu band\u0103 \u00eengust\u0103, urm\u0103re\u0219te de c\u00e2te ori trece curba de pragul de 0,45 V. Ca regul\u0103 practic\u0103, o sond\u0103 s\u0103n\u0103toas\u0103 face asta de cel pu\u021bin opt ori \u00een zece secunde.<\/p>\n<p dir=\"ltr\">Dac\u0103 curba trece rar sau r\u0103m\u00e2ne \u201elipit\u0103\u201d sus sau jos, sonda e lene\u0219\u0103. Dac\u0103 e dreapt\u0103, e posibil s\u0103 fie moart\u0103 sau lipsit\u0103 de alimentare.<\/p>\n<h4 dir=\"ltr\">Pasul 5: testul de r\u0103spuns<\/h4>\n<p dir=\"ltr\">Apas\u0103 brusc accelera\u021bia, apoi ridic\u0103 piciorul. Pe o sond\u0103 cu band\u0103 \u00eengust\u0103, tensiunea sare spre 0,8\u20130,9 V la accelerare. \u00cen decelera\u021bie scade sub 0,2 V. Tranzi\u021bia trebuie s\u0103 fie rapid\u0103, de ordinul unei frac\u021biuni de secund\u0103.<\/p>\n<p dir=\"ltr\">La o sond\u0103 cu band\u0103 larg\u0103, lambda scade sub 1,00 la accelerare. \u00cen decelera\u021bie, la t\u0103ierea injec\u021biei, cre\u0219te mult peste 1,00. Valorile exacte difer\u0103 de la model la model, dar mi\u0219carea trebuie s\u0103 fie clar\u0103 \u0219i rapid\u0103.<\/p>\n<h4 dir=\"ltr\">Pasul 6: cite\u0219te corec\u021biile de combustibil<\/h4>\n<p dir=\"ltr\">Aici afli dac\u0103 problema e a sondei sau a motorului. Aplic\u0103 aceast\u0103 regul\u0103:<\/p>\n<ul dir=\"ltr\">\n<li>STFT \u0219i LTFT \u00een jurul lui zero: amestecul e corect<\/li>\n<li>valori peste \u00b110%: merit\u0103 investigat<\/li>\n<li>valori peste \u00b120%: ai o problem\u0103 real\u0103 de aer sau combustibil<\/li>\n<\/ul>\n<p dir=\"ltr\">Cu valori mari \u0219i o sond\u0103 care reac\u021bioneaz\u0103 corect, sonda nu e vinovat\u0103. Ea face exact ce trebuie.<\/p>\n<h4 dir=\"ltr\">Pasul 7: verific\u0103 \u00eenc\u0103lzitorul<\/h4>\n<p dir=\"ltr\">Dac\u0103 ai cod P0135 sau P0141, m\u0103soar\u0103 rezisten\u021ba \u00eenc\u0103lzitorului pe pinii indica\u021bi \u00een schema sondei. De obicei ai c\u00e2\u021biva ohmi. Valoarea exact\u0103 e \u00een fi\u0219a tehnic\u0103. Un circuit \u00eentrerupt \u00eenseamn\u0103 sond\u0103 \u00eenlocuit\u0103. Verific\u0103 apoi \u0219i alimentarea dinspre calculator \u0219i siguran\u021ba.<\/p>\n<h4 dir=\"ltr\">Pasul 8: prive\u0219te sonda<\/h4>\n<p dir=\"ltr\">Dac\u0103 ai demontat-o, ea \u00ee\u021bi spune multe prin culoare.<\/p>\n<div dir=\"ltr\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Aspect al depunerii<\/th>\n<th scope=\"col\">Cauz\u0103 probabil\u0103<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Gri-maro deschis, curat<\/td>\n<td>Func\u021bionare normal\u0103<\/td>\n<\/tr>\n<tr>\n<td>Negru, funingine uscat\u0103<\/td>\n<td>Amestec bogat<\/td>\n<\/tr>\n<tr>\n<td>Alb sau gri foarte deschis<\/td>\n<td>Amestec s\u0103rac sau cenu\u0219\u0103 din aditivi<\/td>\n<\/tr>\n<tr>\n<td>Alb cristalin, lucios<\/td>\n<td>Antigel sau silicon<\/td>\n<\/tr>\n<tr>\n<td>Maro \u00eenchis, lucios, uleios<\/td>\n<td>Ulei ajuns \u00een evacuare<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote dir=\"ltr\">\n<p dir=\"ltr\">\u26a0\ufe0f <strong>ATEN\u021aIE:<\/strong> \u021aeava de e\u0219apament r\u0103m\u00e2ne foarte fierbinte mult timp dup\u0103 oprire. Lucreaz\u0103 cu ma\u0219ina cald\u0103, nu fierbinte, \u0219i poart\u0103 m\u0103nu\u0219i. Nu cur\u0103\u021ba niciodat\u0103 sonda cu spray de fr\u00e2n\u0103 sau de carburator. Elementul ceramic se deterioreaz\u0103.<\/p>\n<\/blockquote>\n<hr \/>\n<h3 dir=\"ltr\">Ce faci dup\u0103 rezultate<\/h3>\n<p dir=\"ltr\">Rezultatele testului \u00ee\u021bi dau trei scenarii clare:<\/p>\n<ul dir=\"ltr\">\n<li><strong>Sond\u0103 lent\u0103, trimuri normale.<\/strong> Sonda e \u00eemb\u0103tr\u00e2nit\u0103. \u00cenlocuie\u0219te-o. Sondele cu band\u0103 \u00eengust\u0103 pe ma\u0219inile vechi se uzeaz\u0103 de obicei \u00eentre 100.000 \u0219i 160.000 km.<\/li>\n<li><strong>Sond\u0103 care reac\u021bioneaz\u0103 corect, trimuri mari.<\/strong> Caut\u0103 aerul fals, MAF-ul, injectoarele sau presiunea de combustibil.<\/li>\n<li><strong>\u00cenc\u0103lzitor \u00eentrerupt sau circuit mort.<\/strong> \u00cenlocuie\u0219ti sonda \u0219i verifici cablajul.<\/li>\n<\/ul>\n<p dir=\"ltr\">Pe ma\u0219inile diesel, sonda cu band\u0103 larg\u0103 ajut\u0103 la gestionarea EGR \u0219i a regener\u0103rii DPF. Principiul de test r\u0103m\u00e2ne acela\u0219i. Cite\u0219ti lambda \u00een live data \u0219i o compari cu realitatea motorului.<\/p>\n<hr \/>\n<h3 dir=\"ltr\">\u00cenlocuirea sondei, pe scurt<\/h3>\n<ol dir=\"ltr\">\n<li>Las\u0103 motorul s\u0103 se r\u0103ceasc\u0103 p\u00e2n\u0103 c\u00e2nd po\u021bi atinge \u021beava f\u0103r\u0103 pericol.<\/li>\n<li>Deconecteaz\u0103 conectorul \u0219i scoate cablul din cleme.<\/li>\n<li>Strope\u0219te filetul cu solu\u021bie de desprins. A\u0219teapt\u0103 c\u00e2teva minute.<\/li>\n<li>Folose\u0219te o cheie special\u0103 de 22 mm, cu fant\u0103 pentru cablu.<\/li>\n<li>Pune sonda nou\u0103. Filetul vine de obicei cu past\u0103 anti-gripaj. Nu pune past\u0103 pe v\u00e2rful sondei.<\/li>\n<li>Str\u00e2nge la cuplul indicat de produc\u0103tor. Pentru majoritatea sondelor, valoarea e \u00een jur de 40\u201350 Nm.<\/li>\n<li>Fixeaz\u0103 cablul departe de \u021beava fierbinte \u0219i de piesele \u00een mi\u0219care.<\/li>\n<li>\u0218terge codurile \u0219i f\u0103 un drum de test. Urm\u0103re\u0219te trimurile.<\/li>\n<\/ol>\n<p dir=\"ltr\">Evit\u0103 sondele universale cu conectori t\u0103ia\u021bi \u0219i lipi\u021bi dac\u0103 nu ai fi\u0219a de culori. O gre\u0219eal\u0103 la fire arde \u00eenc\u0103lzitorul din prima pornire.<\/p>\n<hr \/>\n<h3 dir=\"ltr\">Gre\u0219elile care cost\u0103 bani<\/h3>\n<ul dir=\"ltr\">\n<li>s\u0103 schimbi sonda doar pentru c\u0103 apare P0420<\/li>\n<li>s\u0103 cure\u021bi sonda cu spray, \u00een loc s-o testezi<\/li>\n<li>s\u0103 ignori o scurgere de e\u0219apament dinaintea sondei<\/li>\n<li>s\u0103 nu verifici corec\u021biile de combustibil \u00eenainte de orice pies\u0103<\/li>\n<li>s\u0103 montezi o sond\u0103 f\u0103r\u0103 specifica\u021bie clar\u0103, doar pentru pre\u021b<\/li>\n<\/ul>\n<p dir=\"ltr\">Testul cu live data dureaz\u0103 mai pu\u021bin dec\u00e2t o deplasare \u00een plus. Un tester care afi\u0219eaz\u0103 grafice live, cum este <a href=\"https:\/\/mythinkcar.com\/collections\/advanced-diagnostic-scanners\/products\/thinkcar-thinkscan-689bt-bidirectional-scan-tool?ref=diagnozabam\">THINKCAR THINKSCAN 689BT<\/a>, \u00ee\u021bi pune curba sondei \u0219i corec\u021biile pe acela\u0219i ecran. Vezi cauza, nu doar simptomul.<\/p>\n<hr \/>\n<h3 dir=\"ltr\">\u00centreb\u0103ri frecvente (FAQ)<\/h3>\n<blockquote class=\"wp-embedded-content\" data-secret=\"LvdMHzUR8C\"><p><a href=\"https:\/\/diagnozabam.ro\/sfaturi\/ro\/blog\/simptome-electromotor-defect-8-semne-clare-ca-nu-mai-porneste\/\">Simptome Electromotor Defect: 8 Semne Clare C\u0103 Nu Mai Porne\u0219te<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201eSimptome Electromotor Defect: 8 Semne Clare C\u0103 Nu Mai Porne\u0219te\u201d \u2013 Diagnoza BAM\" src=\"https:\/\/diagnozabam.ro\/sfaturi\/ro\/blog\/simptome-electromotor-defect-8-semne-clare-ca-nu-mai-porneste\/embed\/#?secret=KPM3iWusX6#?secret=LvdMHzUR8C\" data-secret=\"LvdMHzUR8C\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p dir=\"ltr\"><strong>Pot circula cu o sond\u0103 lambda defect\u0103?<\/strong><br \/>\nDa, pe distan\u021be scurte. Motorul trece pe un regim de avarie \u0219i folose\u0219te valori fixe. Consumul cre\u0219te, iar catalizatorul se suprasolicit\u0103. Dac\u0103 am\u00e2ni, ri\u0219ti o repara\u021bie mult mai scump\u0103.<\/p>\n<p dir=\"ltr\"><strong>C\u00e2t rezist\u0103 o sond\u0103 lambda?<\/strong><br \/>\nDepinde de tip \u0219i de ma\u0219in\u0103. Sondele vechi cu band\u0103 \u00eengust\u0103 ajung de obicei \u00eentre 100.000 \u0219i 160.000 km. Sondele cu band\u0103 larg\u0103 rezist\u0103, \u00een general, mai mult. Uleiul sau antigelul \u00een evacuare le scurteaz\u0103 via\u021ba.<\/p>\n<p dir=\"ltr\"><strong>Poate sonda lambda s\u0103 provoace codul P0420?<\/strong><br \/>\nDa, mai ales sonda de dup\u0103 catalizator. Dar \u0219i o scurgere de e\u0219apament sau rateurile de aprindere pot da acela\u0219i cod. Verific\u0103-le \u00eenainte s\u0103 condamni catalizatorul.<\/p>\n<p dir=\"ltr\"><strong>Pot cur\u0103\u021ba sonda \u00een loc s-o \u00eenlocuiesc?<\/strong><br \/>\nNu e recomandat. Depunerile vin dintr-o cauz\u0103, iar cur\u0103\u021barea nu o rezolv\u0103. Elementul ceramic se poate deteriora la contactul cu spray-uri agresive.<\/p>\n<p dir=\"ltr\"><strong>Care e diferen\u021ba dintre sonda 1 \u0219i sonda 2?<\/strong><br \/>\nSonda 1 st\u0103 \u00eenainte de catalizator \u0219i ajut\u0103 la dozarea combustibilului. Sonda 2 st\u0103 dup\u0103 catalizator \u0219i verific\u0103 eficien\u021ba acestuia. Au semnale \u0219i roluri diferite.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sonda lambda defect\u0103: cum o verifici \u00eenainte s-o schimbi Lampa motor se aprinde. Consumul cre\u0219te. Ralantiul pulseaz\u0103. Verdictul vine repede, direct din parcare: \u201ee sonda lambda\u201d. Uneori chiar e. Mult mai des, sonda doar \u00ee\u021bi spune adev\u0103rul despre o problem\u0103 din alt\u0103 parte. Dac\u0103 schimbi sonda f\u0103r\u0103 test, pl\u0103te\u0219ti o pies\u0103 \u0219i defectul r\u0103m\u00e2ne. Clientul [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":48317,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1933],"tags":[56062,12819,17655,55529],"class_list":["post-48384","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-auto","tag-live-data-obd2","tag-p0420","tag-sonda-lambda","tag-thinkscan-689bt"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Sonda Lambda Defect\u0103? 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