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Engine-Codes – Nissan – P2128 2010 Nissan Sentra

P2128 2010 Nissan Sentra Code - Accelerator Pedal Position Sensor Circuit

Quick Answer

The P2128 diagnostic trouble code (DTC) in a 2010 Nissan Sentra indicates a problem with the accelerator pedal position sensor circuit. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2128 2010 Nissan Sentra indicates Accelerator Pedal Position Sensor Circuit.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P2128 2010 Nissan Sentra Description

The P2128 diagnostic trouble code (DTC) in a 2010 Nissan Sentra indicates a problem with the accelerator pedal position sensor circuit. The accelerator pedal position sensor is a vital component in the vehicle's electronic throttle control system, responsible for relaying the position of the accelerator pedal to the engine control module (ECM). This information is crucial for the ECM to determine the appropriate amount of fuel and air to deliver to the engine for optimal performance.

OBDII Code P2128 2010 Nissan Sentra - Accelerator Pedal Position Sensor Circuit
P2128 2010 Nissan Sentra Code - Accelerator Pedal Position Sensor Circuit

Common Causes of P2128 2010 Nissan Sentra

  1. Faulty accelerator pedal position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or contamination in the sensor
  4. ECM software or hardware issues
  5. Electrical problems in the throttle control system

Symptoms of P2128 2010 Nissan Sentra

  1. Reduced engine power
  2. Engine stalling or hesitation
  3. Difficulty accelerating
  4. Check Engine Light illuminated
  5. Poor fuel efficiency

How to Fix P2128 2010 Nissan Sentra

  1. Diagnose the issue by using a scan tool to retrieve the DTC and test the accelerator pedal position sensor for proper operation.
  2. Inspect the wiring and connectors in the sensor circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Clean the accelerator pedal position sensor to remove any contamination that may be affecting its performance.
  4. If the sensor is determined to be faulty, replace it with a new one following the manufacturer's recommendations.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2128 2010 Nissan Sentra

The cost of repairing the P2128 code in a 2010 Nissan Sentra can vary depending on the specific cause of the issue and the cost of parts and labor. In general, the cost of replacing the accelerator pedal position sensor can range from $100 to $300, while the labor cost for the repair can be between $80 and $150 per hour. Overall, the total repair cost for addressing the P2128 code may range from $200 to $500, including parts and labor. However, it is advisable to check with local auto repair shops for more accurate estimates based on your location and vehicle specifics.

When is the Code Detected?

An excessively low voltage from the APP sensor 2 is sent to ECM.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2128 2010 Nissan Sentra Code

1. What are the common symptoms of OBDII code P2128 in a 2010 Nissan Sentra?

The common symptoms of OBDII code P2128 in a 2010 Nissan Sentra include issues with acceleration, reduced engine power, and potential stalling.

2. What does OBDII code P2128 in a 2010 Nissan Sentra indicate?

OBDII code P2128 in a 2010 Nissan Sentra indicates a fault in the accelerator pedal position sensor circuit.

3. What are the possible causes of OBDII code P2128 in a 2010 Nissan Sentra?

Possible causes of OBDII code P2128 in a 2010 Nissan Sentra include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or a problem with the vehicle's ECM.

4. How can I diagnose the issue related to OBDII code P2128 in my 2010 Nissan Sentra?

Diagnosing the issue related to OBDII code P2128 in a 2010 Nissan Sentra may involve using a scan tool to check for the code, testing the accelerator pedal position sensor, inspecting the wiring and connectors for damage, and checking the ECM for faults.

5. Can I still drive my 2010 Nissan Sentra with OBDII code P2128?

It is not recommended to drive your 2010 Nissan Sentra with OBDII code P2128, as it can lead to issues with acceleration and engine performance, potentially compromising your safety and the vehicle's drivability.

6. How can I repair OBDII code P2128 in my 2010 Nissan Sentra?

Repairing OBDII code P2128 in a 2010 Nissan Sentra may involve replacing the faulty accelerator pedal position sensor, repairing or replacing damaged wiring or connectors, or addressing any issues with the ECM.

7. Are there any DIY tips for fixing OBDII code P2128 in a 2010 Nissan Sentra?

While some simple checks like inspecting the wiring and connectors can be done DIY, it is recommended to have a professional mechanic diagnose and repair OBDII code P2128 in a 2010 Nissan Sentra for accurate and safe repairs.

8. Can a bad accelerator pedal position sensor cause OBDII code P2128 in a 2010 Nissan Sentra?

Yes, a bad accelerator pedal position sensor is a common cause of OBDII code P2128 in a 2010 Nissan Sentra, as it affects the signal sent to the ECM related to the position of the accelerator pedal.

9. Is resetting the ECM a potential solution for OBDII code P2128 in a 2010 Nissan Sentra?

Resetting the ECM may temporarily clear the code, but if the underlying issue such as a faulty sensor or wiring problem is not addressed, OBDII code P2128 is likely to reappear.

10. How much does it cost to fix OBDII code P2128 in a 2010 Nissan Sentra?

The cost to fix OBDII code P2128 in a 2010 Nissan Sentra can vary depending on the specific cause of the issue, but it may involve sensor replacement, wiring repairs, or ECM diagnostics, with potential costs ranging from a few hundred to a few thousand dollars.

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