P2128
Throttle/Pedal Position Sensor/Switch E Circuit High
P2128 is an OBD-II diagnostic trouble code meaning: Throttle/Pedal Position Sensor/Switch E Circuit High. Common causes: faulty throttle position sensor, short circuit in the sensor circuit. Estimated repair cost: $17–56.
Symptoms
- Rough engine idling
- Dips during acceleration
- Increased fuel consumption
- Check Engine Light Is On
- Loss of engine power
Causes
- Faulty throttle position sensor
- Short circuit in the sensor circuit
- Poor contact in the sensor connector
- Damaged wires in the circuit
- Engine ECU malfunction
How to Fix
- Check the integrity of the wiring to the sensor
- Check connections and sensor connector
- Test the throttle position sensor
- Replace sensor if necessary
- Check and, if necessary, reset throttle adaptations
Related codes
Error P2128 by Vehicle Brand
FAQ
What does the P2128 code mean?
P2128 is an OBD-II diagnostic trouble code that indicates: Throttle/Pedal Position Sensor/Switch E Circuit High
What causes a P2128 error code?
The most common causes of P2128 include: Faulty throttle position sensor; Short circuit in the sensor circuit; Poor contact in the sensor connector; Damaged wires in the circuit.
How do I fix a P2128 diagnostic trouble code?
To fix P2128: Check the integrity of the wiring to the sensor. Check connections and sensor connector. Test the throttle position sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2128?
Do not drive — repair immediately
How much does it cost to fix P2128?
The estimated repair cost for P2128 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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