I have a 2014 Town and country van. I have to replace 2 upstream sensors. I am going to replace all 4, upstream and downstream. If I get 4 at once, are they all the same???
Yes, bad oxygen sensor can result a fault P0420. This may indicate a poor connection to the sensor or its damage. And due to exhaust leakage, this error occurs.
On my 2020 Mazda cx5, I have P2096 dtc. Post catalytic converter fuel trim (FT), bank 1 - too lean. Is my O2 dead?
I have a 2014 Town and country van. I have to replace 2 upstream sensors. I am going to replace all 4, upstream and downstream. If I get 4 at once, are they all the same???
Can a P0420 code be related to Oxygen sensors?
Yes, bad oxygen sensor can result a fault P0420. This may indicate a poor connection to the sensor or its damage. And due to exhaust leakage, this error occurs.
@@autoadviser2779 Thank you, I used Cataclean and reset the codes. It's been 150+ Miles now so far the code hasn't come back.