I drove my 2004 thru a car wash the other day and when I exited from the car wash, the car died. I immediately restarted the car but was in limp mode. I parked the car to continue to clean the car, but when I drove home, the limp mode came on. I parked the car in a parking lot and cleared the codes after I wrote them down and called for a tow truck. The codes I read was P0138 and P0158. These codes read Bank 1&2 sensor 1&2 Circuit High Voltage O2 sensor. Did the car wash cause these faults and will they come back later. I was able to drive the car home myself but at very reduced speed and with the AC off. I would appreciate understanding the meaning of the codes and should I have 1 or both of the O2 sensors replaced. Up to this time the car has been very reliable and I want to keep the car for the immediate future. Thank you.

 

Info here:

https://repairpal.com/obd-ii-code-p0138

Can you check the drain under the cabin filter.

If it's blocked you may have had water onto the ECU and connector.