HO2S Pumping Current Trim Circuit/Open Bank 1 Sensor 1
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P2626 HYUNDAI Possible Causes
- HO2S Bank 1 Sensor 1 harness is open or shorted
- HO2S Bank 1 Sensor 1 circuit poor electrical connection
- Faulty HO2S Bank 1 Sensor 1
How do I fix code P2626 HYUNDAI?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
User Submitted Video
Cost of diagnosing the P2626 HYUNDAI code
The cost of diagnosing the P2626 HYUNDAI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The PCM monitors front HO2S tip temperature and signal at the same time to check open ciurit of Pumping Current Trim Circuit. The PCM sets DTC P2626 if front O2 tip temerature is lower than the predetermined threshold and if front HO2S signal after oscillator off is lower than the predetermined threshold.
If the same error code is set in the next driving cycle, the PCM illuminates the MIL.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2626 HYUNDAI Description
The linear O2 sensor is mounted on the front side of the Catalytic Converter (warm-up catalytic converter) or in the front exhaust pipe. It detects a wide range of air/fuel ratios in the exhaust gas from the rich to lean regions. This linear O2 sensor produces a current that corresponds to a specific air/fuel ratio. The PCM monitors this signal and determines whether the air/fuel mixture is rich or lean. The PCM constantly monitors the linear O2 sensor and increases or decreases the fuel injection duration using this signal. This is called closed-loop fuel control operation.
