2010 Chrysler T&C. P0300 and P0152 at same time. Would replacing the O2 sensor help?

Question

I have engine light on and sometimes flashing. Have had codes reset and they return together within 1 short drive cycle.
unfortunately I am 800 miles from home. Hopefully something relatively minor can get me home.

Answer 1

Hi there,

The O2 sensor can cause the P0300 code. It plays a large roll in the fuel mixture and if it's reading wrong it's possible the mixture is bad and causing the mifire. It is far more common however to have a faulty coil or plug, this burns wrong and then you are more likely going to see the O2 sensor code. Since the check engine light is flashing I would be more inclinded to think you have an issue with the ignition coils and the van just can't pick out which cylinder is misfiring at the moment so it's throwing the code for the multiple misfires.