Fault Code P2166
Code meaning, symptoms, possible causes, part number, and estimated cost.
P2166
Throttle/Pedal Position Sensor/Switch 'D' Maximum Stop Performance
This code indicates that the Throttle/Pedal Position Sensor/Switch 'D' detects an incorrect or abnormal reading at the maximum stop position (wide open throttle). This sensor is used in more complex systems with more than one sensor.
Part Details
Part Name
Throttle Position Sensor (TPS)
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪900
Engine Location
Throttle Body / Accelerator Pedal
Symptoms
- Reduced engine power
- Engine enters limp mode
- High or unstable idle speed
- Hesitation or surging during acceleration
Possible Causes
- 1Faulty Throttle/Pedal Position Sensor/Switch 'D'
- 2Damaged wiring or short to voltage/ground
- 3Loose or corroded connector
- 4Engine Control Module (ECM) failure
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