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Truble Code P0411


BrianScott
05-26-2007, 07:27 PM
Hello out there,
I hope someone can help me. I have a 1997 Lincoln Cont. There is a trubble code P0411 that was set. can someone tell me the best way to fix this. I need to have it fixed by June 1st
Thank you
Brian

Towncar
05-27-2007, 09:48 PM
From the book:

P0411 Secondary Air Injection system incorrect upstream flow detected

Two very large subdivisions in the manual address this fault code.

As you can see by the descriptions, one procedure is for an Electric Air Pump, and the other addresses a Belt Drive Air Pump.

Which is yours? I can get some of the procedures if you show me the right direction.

Secondary Air Injection (AIR) System Monitor Electric Air Pump System
Secondary Air Injection (AIR) System Monitor Belt Driven Air Pump System

Get the manual from http://fordcds.com


Basically it all begins like this:

TROUBLE CODE (DTC) P0411

DTC P0411 indicates that Secondary Air is not being diverted when requested.

Possible causes:

-- Vacuum hoses damaged.

-- AIRB/AIRD valve inoperative.

-- Air Pump inoperative.

-- AIRB/AIRD solenoids damaged.


Visually inspect vacuum lines for disconnects in the AIR system.

Visually inspect for proper vacuum line routing. Refer to VECI decal.
Visually inspect Air Pump for broken or loose Air Pump Belt. Refer to belt adjustment/replacement.


Were any problems found?

Yes
SERVICE as necessary, Re-Test.

No
GO to next process.

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