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P2164 OBD2: Throttle/Pedal Position Sensor "B" Maximum Stop Performance

P2164 OBD2: Throttle/Pedal Position Sensor “B” Maximum Stop Performance

The P2164 code is an OBD-II trouble code that indicates a problem with the Throttle/Pedal Position Sensor “B” in your vehicle. This sensor plays a critical role in determining how much power the engine needs to produce based on the driver’s input through the accelerator pedal.

What Does the P2164 Code Mean?

The P2164 code means that the Powertrain Control Module (PCM) has detected a fault related to the Throttle/Pedal Position Sensor “B”. This can lead to decreased engine performance, as the PCM relies on accurate information from these sensors to manage fuel delivery and throttle response effectively.

What Causes the P2164 Code?

Several issues can trigger the P2164 code, including:

  • Accelerator Pedal Position (APP) assembly failure
  • Throttle Position Sensor (TPS) failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues or poor connections

What Are the Symptoms of the P2164 Code?

Symptoms associated with the P2164 code may include:

  • Decreased engine performance
  • Engine may enter limp home mode (reduced performance)
  • Increased fuel consumption

How Serious Is the P2164 Code?

The P2164 code is classified as urgent, meaning that immediate action is necessary. Continuing to drive with this code can lead to severe damage to the vehicle or pose safety risks to the driver and passengers due to restricted vehicle speed and performance.

How to Diagnose the P2164 Code

Diagnosing the P2164 code typically involves the following steps:

  1. Using an OBD-II scanner to confirm the P2164 code and check for any additional codes.
  2. Inspecting the wiring and connectors associated with the Throttle Position Sensor and Accelerator Pedal.
  3. Testing the functionality of the Throttle Position Sensor and Accelerator Pedal Position assembly.
  4. Verifying the operation of the PCM if the sensors and wiring are functioning correctly.

Common Repairs for the P2164 Code

Common repairs for the P2164 code may include:

  • Replacing the Throttle Position Sensor (TPS)
  • Replacing the Accelerator Pedal Position (APP) assembly
  • Repairing or replacing damaged wiring and connectors
  • Reprogramming or replacing the Powertrain Control Module (PCM)

How Much Does It Cost to Fix the P2164 Code?

The cost to repair the P2164 code can vary significantly depending on the underlying issue. On average, you might expect to pay between $100 and $800, depending on whether you need to replace a sensor, repair wiring, or replace the PCM.

Can I Fix the P2164 Code Myself?

While some aspects of diagnosing the P2164 code can be performed by a knowledgeable DIYer, such as checking for loose connections or inspecting wiring, it is recommended to seek professional help for repairs. This is particularly important for sensor replacements and PCM reprogramming, which require specialized tools and expertise.

About JC Landry

JC spent 15+ years as a certified Master Mechanic before trading the shop for the keyboard. He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. He learned to write after spending over a decade doing it.

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