General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here...

Trouble Code P0401 & 0420

  #1  
Old 08-12-2007, 10:06 PM
Junior Member
Thread Starter
Join Date: Aug 2007
Location: United States
Posts: 2
Default



Recently purchased a 99 Cougar (cheap) with 152K along with engine light On as a gift.. The car runs great and has lots of power.. V6 24 Vaule....Used my Davis Car Chip to analyze Engine Light...Came up with 2 code mentioned below...Used Motor Flush (Kerosine) On Engine Changed Oil and Cleaned injectors and Throttle body...Used my Davis Car Chip to reset codes.. They have not came back.. Hope this helps.. Davis Car Chips found on ebay.. Nice little gadget....


I will eventually replace the Catalytic Converter....


P0401 Exhaust Gas Reciruclation Flow Insufficient


P0420 Catalyst System efficiency Below Threshold


Hope this Helps...


[img]smileys/smiley2.gif[/img]
 
  #2  
Old 09-25-2007, 09:57 AM
Junior Member
Join Date: Sep 2007
Location: United States
Posts: 9
Default

Here's how to understand and repair a P0401 trouble code

P0401

Cleaning throttle body passages

 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dschutt
Mountaineer
0
01-18-2014 10:38 AM
tallesthunter
Sable
4
02-14-2011 04:43 AM
data6326
Mountaineer
1
05-27-2009 01:15 AM
bigred40
Cougar
0
07-21-2006 02:14 AM
Obster
Grand Marquis
1
10-17-2005 07:01 PM


Thread Tools
Search this Thread
Quick Reply: Trouble Code P0401 & 0420


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.