P1120 – Throttle Position Sensor Circuit (Nissan)
Description
The ECM detected an electrical malfunction in the throttle position sensor circuit.
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Compare Diagnostic ScannersSymptoms
- Poor acceleration
- Hesitation
- Rough idle
- High idle
- Check engine light
Causes
- Faulty TPS sensor
- Open or shorted wiring
- Connector corrosion
- ECM driver fault
Diagnosis
- Test TPS resistance
- Inspect wiring
- Check connectors
- Scan live data
Repair
- Replace TPS sensor
- Repair wiring
- Clean connectors