17831/P1423/005155

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17831/P1423/005155 - Secondary Air Injection System; Bank 1: Insufficient Flow

Possible Symptoms

  • Malfunction Indicator Light (MIL) active

Possible Causes

  • Fuse for Secondary Air Injection Pump blown
  • Vacuum Hose(s) leaky or collapsed
  • Piping between Secondary Air Injection Pump and Combi (Secondary Air Injection) Valve leaking
  • Secondary Air Injection Solenoid(s) faulty
  • Combi Valve(s) faulty

Possible Solutions

  • Check Fuse for Secondary Air Injection Pump
  • Check Vacuum Hose(s)
  • Check Piping between Secondary Air Injection Pump and Combi (Secondary Air Injection) Valve
  • Check Secondary Air Injection Solenoid(s)
  • Check Combi Valve(s)
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