Question

2003 Honda Accord Coupe EX V6 3.0L VTEC with code P2631, what could be the problem?

Answer 1

This is more of an intermittent failure when the code is circuit high voltage this represents a poor connection or loose connection with the A/F sensor. either this is at the sensor harness or internal of the sensor. Being sensor 1 this is the upstream A/F sensor, (the airflow sensor are commonly referred to as a 02 sensor)

P2631 HONDA Code - Air/Fuel Ratio Sensor Bank 2 Sensor 1 Circuit High Voltage
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