Bobby Saulino Posted March 8, 2019 Share Posted March 8, 2019 ERROR CODE PO 131 does anyone know difinitivly what this error code means i keep clearing and it keeps recurring I have changed the o2 sensor Lambda but this was admittedly not top of range sensor could this b the problem? any and all suggestions welcome Thank you Quote Link to comment Share on other sites More sharing options...
dezwez Posted March 8, 2019 Share Posted March 8, 2019 O2 Sensor Circuit Low Volts (Bank 1 Sensor 1) that's what comes up Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted March 8, 2019 Share Posted March 8, 2019 Cheap lambda sensors are often poor quality unfortunately so could be that. Was it a generic one that had to have a plug soldered on? Quote Link to comment Share on other sites More sharing options...
Chris1234 Posted April 5, 2019 Share Posted April 5, 2019 Hi, I have recently had the same problem. Check if your car is fitted with two Lambda sensors, bank 1 is upstream so will be located up in the exhaust manifold as it comes off the engine block. The bank 2 downstream sensor is located on the exhaust downpipe after the cat. Otherwise the wiring could be damaged. Quote Link to comment Share on other sites More sharing options...
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