Problem Description and Possible Solution
The Check Engine Light may illuminate due to an O2 sensor heater fault. Most commonly the affected O2 sensor will need to be replaced to correct this concern.
Problem DataRepairPal Verified
Average mileage: 137,265 (62,500–229,000)
42 people reported this problem
I was told Bank 1 sensor 2 O2 sensor has heating circuit defective. Error code P0037 and P0136 I replaced the sensor, I disconnected the battery for about two minutes, but the error code and engine light did come back. What can be wrong? I know that the sensor I used was working sensor. The sensor I used was a NTK make.