P2626 Fault Code
P2626 OBD-II Trouble Code Short Description
O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1
What does trouble code P2626 mean?
The P2626 fault code indicates an issue with the Oxygen (O2) Sensor Pumping Current Trim Circuit for Bank 1 Sensor 1. This sensor is crucial for monitoring the oxygen levels in the exhaust gases, which helps the engine control module (ECM) manage fuel efficiency and emissions. When this code is triggered, it often means that there is an open circuit or a failure in the circuit that powers the O2 sensor.
Symptoms
What are the symptoms of the P2626 code?
- Check Engine Light (CEL) illuminated
- Poor fuel economy
- Increased emissions
- Rough idling or stalling
- Failed emissions test
Causes
What causes the P2626 code?
- Damaged wiring or connectors in the O2 sensor circuit
- Faulty O2 sensor
- ECM issues affecting sensor performance
- Corrosion or poor connections in the electrical circuit
Possible Solutions
How to fix P2626?
- Inspect and repair any damaged wiring or connectors related to the O2 sensor
- Test the O2 sensor for proper operation and replace if faulty
- Check the ECM for faults and reprogram if necessary
- Clear the fault code and test drive to see if the issue reoccurs