OBD Guide

P2166

Throttle/Pedal Position Sensor D Maximum Stop Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Rough idle
  • Reduced engine power
  • Check Engine light comes on
  • Dips when pressing the gas pedal
  • Increased fuel consumption

Causes

  • Throttle position sensor D malfunction
  • Throttle valve sticking
  • Problems with wiring or contacts
  • Short circuit in the sensor circuit
  • ECU malfunction

How to Fix

  1. Check the condition of the throttle valve for sticking
  2. Check the integrity of the wiring and contacts of the sensor
  3. Test throttle position sensor D
  4. Replace the faulty sensor if necessary
  5. Reset the error and check the system operation

Related codes

Error P2166 by Vehicle Brand