The role of the oxygen sensor , which has several how to detect the oxygen sensor is good or bad

The role of the oxygen sensor , which has several how to detect the oxygen sensor is good or badThe fundamental role of the oxygen sensor is used to detect the exhaust oxygen concentration , then ECU ( Engine Control Computer ) will be provided through Auto Temperature Sensor signal to determine the oxygen concentration in the combustion engine ( front oxygen ) or the efficiency of the catalytic converter ( after oxygen ) .Before the oxygen signal for closed-loop control of the input signal , if the judge is too lean mixture combustion is carried injection plus thick, too thick then cut thin for injection , in order to control burning more fully , so that fuel economy andengine better working conditions .After the oxygen signal is used to determine the conversion efficiency of catalytic converters , catalytic converter if serious aging or failure , you can not be an effective catalyst for exhaust , catalytic converters affect the oxygen concentration in the exhaust gas through the oxygen concentration can be determined at this time whether the catalytic converter working properly. Also, according to the catalytic converters in the exhaust gas oxygen concentration can be corrected fuel injection ( fine ) , so that better fuel economy and emissions .
Engine Temperature Sensors detection , first passed in the service shop to detect whether there is a corresponding diagnostic trouble codes , and then detect the corresponding line connection if there are problems ( via plug or replace the wiring harness, etc. ) , and if the problem is recognized as an oxygen sensor oxygen sensor will need to be Remove to return to the supplier for detailed detection and analysis , this can not be in the service shop or your own testing, because the oxygen sensor is relatively complex. Confirm whether the oxygen sensor failure , there is a way to get a new oxygen sensor up, see if the fault reproduction