P1122 – Throttle Position Sensor Low Input (Nissan)

Description

The ECM detected a low input signal from the throttle position sensor.

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Symptoms

Poor acceleration
Hesitation
High idle
Check engine light

Causes

Open circuit
Faulty TPS sensor
Connector corrosion
Wiring damage

Diagnosis

Check wiring continuity
Inspect TPS sensor
Check connectors
Scan live data

Repair

Repair wiring
Replace TPS sensor
Clean connectors