I have a folkswagen Golf MKV 2005 model, i used torque to check what the yellow motor sign means, and this is what i received:
P2201 - Powertrain NOx Sensor Circuit Range/Performance bank1
P2096 - Powertrain Post Catalyst Fuel Trim System Too Lean bank1
what does these mean, and if something is broken, what can I change ?
does these affect the fuel consumption ?
It has probably been like this since before last service and possibly eu control. Are there any android applications I can install to get better information? I am using VGate OBD2 tool