My dad's 2008 Mazda Atenza (aka Mazda 6) hasn't been starting because it has a flat battery (6.3 volts) and today I decided to to plug in the OBD 2 reader just for fun and I found two codes:
P0111 - Intake air temperature sensor 1 circuit range / performance
P0134 - O2 sensor circuit no activity detected bank 1 sensor 1
We haven't noticed any issues with the car. We do note that it uses more petrol than the other cars but the other cars we have, have smaller engines ranging from 1.2 litres to 1.8 litres.
Are these codes concerning and what should we do about it? thank you
Car details:
Mazda Atenza
2008
120,000 km or 74564 miles
2.5 litre
Automatic transmission
Second hand Japanese import
If it runs okay I wouldn't worry about it and do this reset the codes after you replace the battery because a low battery itself can trip codes cuz the sensors don't have enough electricity to let them work correctly in conjunction with the computer as they work on voltage differential
