[SOLVED] P2629 Code: Fixing Oxygen Sensor Pumping Current Trim Circuit

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the P2629 fault code. This code indicates a problem with the Heated Oxygen Sensor (HO2S) or its related wiring harness and connectors.

The cause could be a faulty HO2S, an open or shorted HO2S harness, or a poor electrical connection in the HO2S circuit. The repair importance is high as it affects the engine’s performance and fuel efficiency. The repair difficulty is moderate, and it takes around 1.0 hour to fix.

To interpret the fault code, you need to check the possible causes listed above and visually inspect the related wiring harness and connectors for any damage or corrosion.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level6.67 (Out of 10)

If you notice the Engine Light ON, it could be a sign of p2629 fault code.

Here are some symptoms to look out for:

  • The P2629 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include reduced engine power, decreased fuel efficiency, engine misfires, and rough idling.
  • Additionally, the vehicle may experience stalling or hesitation during acceleration, and there may be a noticeable decrease in overall performance.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle and ensure safe operation on the road.

The automobile fault code p2629 can be caused by a faulty HO2S, open or shorted HO2S harness, or poor electrical connection.

  • The automobile fault code P2629 can be caused by a faulty Heated Oxygen Sensor (HO2S).
  • It can also be caused by an open or shorted Heated Oxygen Sensor (HO2S) harness.
  • Additionally, a poor electrical connection in the Heated Oxygen Sensor (HO2S) circuit can also trigger this fault code.

To fix the automobile fault code p2629, check the possible causes and inspect related wiring harness and connectors for damage.

  • To fix the automobile fault code p2629, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and broken, bent, pushed out, or corroded connector’s pins.
  • Ensure that everything is in good condition.
  • The estimated repair time for this fix is 1.0 hour.

The automobile fault code P2629 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the repair time, which is commonly charged between $75 and $150 per hour by most auto repair shops. Therefore, the total cost of fixing the P2629 fault code will depend on the hourly rate charged by the repair shop and the estimated repair time required to fix the issue.

The P2629 code is related to the Universal Heated Oxygen Sensor (HO2S) connector.

A resistor is installed in the connector to account for part to part variance. The Powertrain Control Module (PCM) determines the value of this resistor by taking multiple measurements during each ignition ON event.

The PCM uses this value to compensate for the variance in the pumping current signal.

The test fails if the PCM determines the resistance value is too high.

The code specifically refers to the Oxygen Sensor Pumping Current Trim CircuitOpen Bank 2 Sensor 1.

What are the possible causes of the P2629 fault code?

If you’re experiencing the P2629 fault code, you may notice that your engine light is on. This code is typically caused by a faulty Heated Oxygen Sensor (HO2S), an open or shorted HO2S harness, or a poor electrical connection in the HO2S circuit. To fix the issue, it’s recommended to visually inspect the wiring harness and connectors for any damage or corrosion, and check for broken or bent pins.

How can I visually inspect the wiring harness and connectors related to the Heated Oxygen Sensor (HO2S)?

If you’re experiencing an illuminated Engine Light or Service Engine Soon Warning Light, it could be due to a faulty Heated Oxygen Sensor (HO2S), an open or shorted HO2S harness, or a poor electrical connection in the HO2S circuit. To fix this issue, start by visually inspecting the wiring harness and connectors related to the HO2S. Check for any damaged components and look for broken, bent, pushed out, or corroded connector pins.

What are the consequences of not fixing the P2629 fault code?

Ignoring the P2629 fault code, which indicates a faulty Heated Oxygen Sensor (HO2S) or related wiring issues, can lead to serious consequences. The engine light will remain on, indicating a problem, and the vehicle’s performance may be affected. It is important to visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins to fix the issue.

p2629 error fault code explained

If your engine light is on, it could be due to a faulty Heated Oxygen Sensor (HO2S), an open or shorted HO2S harness, or a poor electrical connection. To fix the issue, visually inspect the wiring harness and connectors for damage or corrosion, and check for broken or bent pins.

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