Guide :Maintenance & Repair : 2000 Mercury Cougar 2 Dr V6 Hatchback

Car throwing 3 of the same codes

So my car is throwing P0420 code but it doesn't just throw it once it throws it 3 times had cats replaced and O2 sensors as well and it's still throwing the code 3 times. Would this indicate a need for a computer reflash?

Research, Knowledge and Information :


Car is throwing codes... not sure what happened. [Archive ...


First off, I need to explain what I did before the car began throwing codes. 1) ... I installed it in another car, same errors. Installed different PCM, ...
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Car is throwing codes, how can i fix it? - 2008 Honda Accord


Installed a Ebay generic Short Ram Intake. same 3" size as factory but car is throwing codes p0175 ... same 3" size as factory but car is throwing codes ...
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car is throwing 3 codes - Nissan Forum


... Pulsar, NX, B14 200SX > GA16DE 1.6L Engine > car is throwing 3 codes Reply. Tweet ... on at the same time? I'd look for ... out how to fix my car..throwing codes ...
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Nissan Forum - car is throwing 3 codes


- - car is throwing 3 codes (http://www.NissanForums.com/ga16de-1-6l-engine/255834-car-throwing-3-codes.html) ... Did they all come on at the same time?
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Car is throwing codes, how can i fix it? - 2008 Honda Accord


Car is throwing codes, how can i fix it ... Installed a Ebay generic Short Ram Intake. same 3" size as factory but car is throwing codes p0175 & p0172. how can i fix ...
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Transmission Throwing Several Codes: I Noticed the Check ...


Transmission throwing several codes. ... have the same problem? Yes. No. ... 6 Cyl Front Wheel Drive Automatic 156000 Miles My Wife Was Driving My Car And Then ...
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Car is throwing Engine codes - modularfords.com


The car is throwing the following 6 codes ... I have a friend with these exact same codes as above. The car runs fine except when your comming to a stop and then the ...
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