2.8l fault code P0401 - AudiForums.com

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Old 10-30-2008, 07:20 PM
1st Gear
Join Date: Jul 2008
Posts: 9
Default 2.8l fault code P0401

I took the car through emissions and it says:

P0401:Exhaust Gas Recirculation Flow Insufficient Detected

How can i fix this and get my car through the test?
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Old 10-30-2008, 07:30 PM
auditech79's Avatar
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Join Date: Feb 2007
Location: Nor Cal
Posts: 9,004

Exhaust Gas Recirc.Flow Insufficient Detected

Probably needs a new EGR valve, check the vacuum line going to the valve before you replace it.
99 Chevy Silverado Z71 6" rough country lift/W 35" tires, 4.10 gears, (4.56 soon) S&B CAI and a flowmaster super 44 exhaust.
"Never argue with a fool, they will lower you to their level and beat you with experience." My personal motto.
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Old 10-30-2008, 07:30 PM

16785, 1996, 28l, 96, a4, a6, audi, b5, code, detected, exhaust, fault, gas, insufficient, p0401, quattro, recircflow

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