P0221 – Throttle/Pedal Position Sensor B Range/Performance
Want to confirm the real cause of this fault code?
A high‑quality OBD2 scanner gives you live data, fuel trims, sensor readings and freeze‑frame information — exactly what you need to verify the root cause of this code with confidence.
Symptoms
- Rough idle
- Hesitation
- Poor acceleration
- Surging
- Check engine light
Causes
- Faulty TPS sensor
- Wiring issue
- Throttle body issue
- Connector problem
- ECU issue
Diagnosis
- Inspect TPS wiring
- Test TPS voltage
- Inspect throttle body
- Check connectors
- Scan live data
Repair
- Replace TPS sensor
- Repair wiring
- Clean throttle body
- Fix connectors
- Update ECU if needed