code PO401 need help

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Apr 9, 2010 | 06:49 PM

rxhinojo

Thread Starter

Junior Member

Joined: Jul 2008

Posts: 13

code PO401 need help

I have a 99 t/c with a 3.8 liter and code PO401 comes up with check engine light on. It says it has insufficient airflow. What can I look for to fix the problem? What is this code?

Apr 14, 2010 | 08:13 AM

andyroo

Junior Member

Joined: May 2009

Posts: 9

From: Gloucester

Code is - not sure what the fix is though

P0401....Exhaust Gas Recirculation Flow Insufficient Detected
Manual says:
Required Change in air/fuel ratio not detected during diagnostic check

Apr 14, 2010 | 12:13 PM

CHRYSLER TECH

Super Moderator

Joined: Mar 2006

Posts: 9,135

From: Norcross GA

replace the egr valve

Feb 18, 2012 | 12:06 AM

xmanmta

Junior Member

Joined: Aug 2007

Posts: 16

From:

Not necessarily. I replace the EGR valve and have the same code again. I was told too clean the passageways.

Feb 18, 2012 | 07:17 AM

CHRYSLER TECH

Super Moderator

Joined: Mar 2006

Posts: 9,135

From: Norcross GA

was your code 401? or 405?

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