P1240 – Throttle Position Sensor (Bank 1, Nissan)

Description

The ECM detected a malfunction in the throttle position sensor on Bank 1.

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Symptoms

  • Limp mode
  • Poor acceleration

Causes

  • Faulty TPS
  • Wiring issues

Diagnosis

  • Test TPS voltage
  • Inspect wiring

Repair

  • Replace TPS
  • Repair wiring