P0101 LEXUS – Mass Air Flow Circuit Range/Performance

 

P0101: DIY Repairing Video Tutorial

https://youtu.be/RaWpb3www8s

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0101 LEXUS Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),Engine stall,Engine running rough,Excessive fuel consumption,Excessive smoke  

P0101 LEXUS Possible Causes

  Faulty mass air flow sensor,Intake air leaks,Dirty mass air flow sensor,Dirty mass air filter,Mass air flow sensor harness is open or shorted,Mass air flow sensor circuit poor electrical connection  

P0101 LEXUS Description

  The Mass Air Flow (MAF) sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM). The temperature of the hot film is controlled by the ECM a certain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.