Secondary Air Injection Downstream Flow
Table of contents
P1411 MERCURY Possible Causes
- Faulty Secondary Air Injection Downstream (AIR) pump
- Hose off or blocked
- Bypass solenoid stuck open/closed
How do I fix code P1411 MERCURY?
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 P1411 MERCURY code
The cost of diagnosing the P1411 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The Engine Control Module (ECM) commanded AIR flow ON-No flow detected downstream.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1411 MERCURY Description
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.