P1436 – Secondary Air Injection System Low Flow (Nissan)

Description

The ECM detected insufficient flow in the secondary air injection system.

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Symptoms

  • High emissions
  • Poor acceleration

Causes

  • Pump failure
  • Blocked passages
  • Valve sticking

Diagnosis

  • Check pump operation
  • Inspect passages
  • Test valves

Repair

  • Replace pump
  • Clean passages