Questions & Answers for: fix p0420

...p0420 catylist efficiency below threshold ( p0420 ). heres a probable fix. go to http://repairpal.com/obd-code-p0420----- this will tell what may be wrong as not to replace parts that are not

...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? ...

...fix the problem. What should I do? Thanks the following links can assist you with causes and repair P0420 Catalyst System Efficiency Below Threshold https://www.autocodes.com/p0420.html P0420 OBD II ...

...a 100% answer because I read different answers. Please I need some help Hi. Please concentrate on fixing p0068. this is to do with airflow and fuel/ mixture. maybe air mass meter. these can cause ...

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

...P0420 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 ...

P0420. States O2 sensor. Bank 1. Faulty spark plugs. Or hvac leak. Or catalytic converter. Where do I start to fix this problem. Just purchased original O2 sensor. Will start there then spark plugs. ?

...P0420 How do I fix this problem? 0 2 sensor near the catalytic converter or replace the catalytic converter The downstream O2 sensor reading should be fairly steady. Typically the P0420 code triggers ...

...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 that ...

p0420 for my 08 sienna. What do I have to do to get fix this code? You need service and repair manual with diagram which will provide you step by step help to locate and fix the problem easily and you