Quick research says it’s the A/F ration sensor, Not sure if sensor ever been replaced….254,000 miles. I had a misfire I diagnosed and fixed along with the P2247 code.Miles or kilometres on engine? drivability issues?
Definitely NTK, Denso or Bosch sensor. I don’t think the sensor ever been replaced….Thanks for the advice.Code is saying the voltage is out of range - bank 2 (whatever bank does not have cylinder 1 - not sure on Acura) sensor 1 - which is the furthest upstream sensor.
Could be the sensor, could be wiring, could be ground. Its possible its something else but not that likely.
If you don't find any wiring problems I would replace the sensor - but don't get a jobber sensor - get a good brand - NTK, Denso, Bosch for example.
Yes, The sensor seen better days.you might as well replace it at that mileage
Yes, The sensor seen better days.
I agree, The rule of thumb is 02 sensors should be replaced at 100,000 miles.Replace them all, even the ones not triggering any codes. They all have similar lifespans.
I wouldn't introduce more variables until you get your code fixed - change one variable at a time until your issue is resolved. After that if you wanted to change them all then go for it.I agree, The rule of thumb is 02 sensors should be replaced at 100,000 miles.
Good information….ThanksAn open in the reference circuit means that there is either an open in the sensor itself or the wiring going to the sensor. You need to figure out which one it is. You will probably need a wiring diagram to figure out which wire is the reference one.