Questions & Answers for: how to fix code p0420

code. Not really sure what this means or how to fix the problem here is a site that may help you with your po420 code http://www.aa1car.com/library/p0420_dtc.htm Probably a failed catalytic converter.

...Altima. Can anyone tell me what these codes are? And how to fix them? P0720, P1574, P0420. Please? I have a 2002 Nissan Altima. Can anyone tell me what these codes are? And how to fix them? ...

...CODE AND TELL YOU WHAT'S WRONG AND HOW MUCH TO FIX,THEN IF YOU THINK YOU CAN DO IT,THEN YOU WILL FIND OUT WHAT'S WRONG FOR FREE AND NOT REPLACE PARTS TO SEE IF THAT'S IT,THIS IS WHAT I DO WITH MY ...

...fix p0404 and p0420 code p0404 refers to exhaust gas recirculation (EGR) valve position--range/performance problem ===causes --hose leakage/blockage--wiring ---EGR valve/solenoid code p0420 refers to ...

how to fix code p0420 Mil light intermittent Here's a link to your P0420 code. P0420 Catalyst System Efficiency Below Threshold Bank 1

...Code Fix How Its Done Catalyst Efficiency Below ... ? 4:25 https://www.youtube.com/watch?v=-c8090n1Ihs Jun 20, 2014 - Uploaded by ACE AUTOS UK Here is a tutorial on P0420 code fix catalyst efficiency ...

...fix this problem. Just purchased original O2 sensor. Will start there then spark plugs. ? Rather then replacing a bunch of parts , take it and have a Catalytic converter efficiency testing done . ...

...code P0420. How can I fix this? Do you know what a catalytic converter is ? P0420 How To Diagnose Bad Catalytic Converter EricTheCarGuy Your best bet , take your vehicle to a qualified repair shop ...

2013 Lincoln MKZ with a p0420 code several times how do I fix it How to fix Code P0420 Ricks Free Auto Repair Advice

...fix error code P0430,P0420 for this car? Model:Xc60; Maker:Volvo; Year:2011; Those codes relate to the catalytic converter and usually mean it has to be replaced. Before you do that, find out what ...