P1411 - Secondary Air Injection Downstream Flow

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3  What does this mean?

P1411 Possible Causes

  • Faulty Secondary Air Injection Downstream (AIR) pump
  • Hose off or blocked
  • Bypass solenoid stuck open/closed

First diagnose P1411 code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

P1411 Tech Notes

Check for air leak from intake hoses.

Cost of diagnosing the P1411 code

    Labor: 1.0

    The cost of diagnosing the P1411 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1411 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1411 Meaning

Secondary Air Injection Downstream (AIR) Flow. The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection system Electric AIR Pump Hose from AIR pump leak AIR bypass solenoid leak/blocked Hose from AIR pump blocked AIR bypass solenoid stuck open/closed In order to test the AIR pump, it must be capable of driving the HO2S lean.
OBDII Code P1411 - Secondary Air Injection Downstream Flow - Engine-Codes.com

P1411 More Information

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P1411 Information for specific makes

  • P1411 AUDI Bank 2 Secondary Air Injection System Output Too Small
  • P1411 BMW Secondary Air Injection System Pump Not Active
  • P1411 CHRYSLER Cylinder 1 Reactivation Control Performance
  • P1411 DODGE Cylinder 1 Reactivation Control Performance
  • P1411 FORD Secondary Air Injection Downstream Flow
  • P1411 JEEP Cylinder 1 Reactivation Control Performance
  • P1411 LEXUS EGR Valve Position Sensor Circuit Range/Performance Malfunction
  • P1411 LINCOLN Secondary Air Injection Downstream Flow
  • P1411 MERCEDES-BENZ Secondary Air Injection System Malfunction
  • P1411 MERCURY Secondary Air Injection Downstream Flow
  • P1411 MINI Secondary Air Injection System Pump Not Active
  • P1411 TOYOTA EGR Valve Position Sensor Circuit Range/Performance Malfunction
  • P1411 VOLKSWAGEN Bank 2 Secondary Air Injection System Output Too Small

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