Engine light came on in wife's 2013 Grand Caravan (115k miles).
Cheapo scanner shows PO420 Powertrain:
and low voltage for O2 Bank 1, Sensor 1:
I'm making the assumption that the O2 sensor is the likely culprit and plan to change it out as a first step.
Is this a good assumption given these scan results, or should I do additional diagnostics?
Bank 1, Sensor 1 is the upstream sensor, before the cat way up under that by the firewall, right?
Cheapo scanner shows PO420 Powertrain:
and low voltage for O2 Bank 1, Sensor 1:
I'm making the assumption that the O2 sensor is the likely culprit and plan to change it out as a first step.
Is this a good assumption given these scan results, or should I do additional diagnostics?
Bank 1, Sensor 1 is the upstream sensor, before the cat way up under that by the firewall, right?