2011 Mazda Mazda2 Repair and Maintenance
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2011 Mazda Mazda2 QuestionsCodes P0140 and P0171, engine lamp is ON. (1 answer)
My Mazda 2 2011 (skyactive, istop) is showing fault codes P0140 and P0171 when diagnosed.
P0140 - O2 Sensor Circuit No activity detected( Bank 1 sensor 2)
P0171 - System too Lean (Bank 1)
I have a Mazda 2 2011
Model : DEJFS (Skyactiv istop)
A few days back the engine check lamp came ON and still persists.