P0411 VOLKSWAGEN Code - Secondary Air Injection System Incorrect Flow Detected
|P0411 VOLKSWAGEN code possible causes
- Faulty Vacuum hoses damaged
- Faulty Secondary Air Injection Pump
- Air bypass solenoid harness is open or shorted
- Air bypass solenoid circuit poor electrical connection
- Air bypass solenoid leaking/blocked or stuck open/closed
- Air diverter valve leaking/blocked or stuck open/closed
|How do I fix the P0411 VOLKSWAGEN 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 connector's pins.
|Cost of diagnosing the P0411 VOLKSWAGEN code
Labor: 1.0The cost of diagnosing the P0411 VOLKSWAGEN code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
|When is the P0411 VOLKSWAGEN code detected?The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection system.
|What are P0411 VOLKSWAGEN code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation
|P0411 VOLKSWAGEN code descriptionAn air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.
|Need more information with the P0411 VOLKSWAGEN code?Need more information on how to fix the P0411 VOLKSWAGEN code? Get Access to Factory Service Manuals
|Need help with a P0411 VOLKSWAGEN code?Get the P0411 Volkswagen code diagnosed by a professional: Find a repair shop in your area
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