P2628 OBD-II: O2 Sensor Pumping Current Trim Circuit High

P2628 Severity

Moderate

Will P2628 go away on its own?

Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.

For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.

Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.

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What causes OBD-II fault code P2628?

The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the combustion process of the engine. This information is critical to the PCM's ability to maintain efficient fuel economy. When the PCM detects a failure of the sensor or the information received from the sensor, it will set code P2628.

OBD II Fault Code

OBD II P2628

OBD-II Code Decreased engine performance is defined as a O2 Sensor Pumping Current Trim Circuit High

Decreased engine performance Symptoms

Decreased engine performance
Increased fuel consumption

Common Problems That Trigger the P2628 Code

Exhaust leak
Oxygen sensor failure
Powertrain Control Module (PCM) failure
Wiring issue

Common Repairs Needed for the P2628 Code

Oxygen Sensor Replacement

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