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DTC codes / P21xx · Fuel and air metering / P2167

P2167Throttle/Pedal Position Sensor 'E' Maximum Stop Performance

P2167 indicates that the engine control module has detected a performance problem with the maximum stop position of throttle or pedal position sensor 'E', meaning the sensor's signal at full pedal travel does not match the expected value. The computer compares the sensor's voltage at the mechanical stop against a stored reference and sets the code when the reading falls outside the acceptable range.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaFuel and air metering

Symptoms you may notice

  • Illumination of the check engine light, often with no other noticeable symptoms
  • Reduced engine power or limp mode, limiting acceleration
  • A dead spot or hesitation when pressing the accelerator pedal firmly
  • Inconsistent or delayed throttle response during hard acceleration
  • The pedal may feel normal but the vehicle fails to reach higher speeds
  • In rare cases, the engine may idle erratically or stall when coming to a stop

Common causes, most likely first

  1. Worn or damaged throttle position sensor 'E' or its internal tracks
  2. Corroded, loose, or damaged electrical connector at the throttle body or pedal assembly
  3. Chafed or broken wiring in the sensor circuit, especially near the pedal or throttle body
  4. Mechanical binding or wear in the accelerator pedal assembly that prevents full travel
  5. Carbon buildup or mechanical obstruction on the throttle plate limiting its movement
  6. Failed or misadjusted throttle body assembly
  7. A software calibration issue in the engine control module requiring reflash or replacement

How to diagnose and fix it

  1. Scan all modules for stored and pending codes, and record freeze-frame data to confirm the fault conditions
  2. Visually inspect the throttle body, pedal assembly, and sensor connectors for damage, corrosion, or binding
  3. Use a scan tool to monitor throttle position sensor 'E' voltage through the full pedal travel and compare it to the specified range
  4. Perform a voltage drop test on the sensor's ground and signal circuits to rule out wiring resistance
  5. Clean the throttle body and check for mechanical obstructions that could prevent full pedal travel
  6. Replace the faulty throttle position sensor or throttle body assembly if electrical tests confirm an internal failure
  7. Clear codes and perform a throttle relearn or idle relearn procedure as required by the manufacturer

What Most Techs Miss on P2167

  • A dirty throttle body can cause the maximum stop position to be learned incorrectly, so cleaning the throttle plate often resolves the code without any parts replacement.
  • The pedal position sensor and throttle position sensor are often confused; on many vehicles, sensor 'E' refers to a specific track in the accelerator pedal assembly, not the throttle body itself.
  • Intermittent wiring faults at the pedal connector are common and may only appear when the pedal is pressed to the floor, so wiggle-test the harness while watching live data.
  • After replacing a sensor or throttle body, many vehicles require a relearn procedure; skipping it can cause the code to return immediately even with good parts.
  • A weak battery or charging system issue can cause erratic sensor readings and set this code, so always verify battery voltage and ground integrity before condemning sensors.

Can I keep driving with P2167?

The vehicle may enter limp mode and limit power, which can be unsafe in traffic, so avoid hard acceleration and plan to have it diagnosed soon. If the check engine light is flashing or the engine stalls, stop driving and seek professional service immediately.

Tools that help

Tools we recommend are in the Auto Veteran shop on Amazon. As an Amazon Associate we earn from qualifying purchases.

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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