Questions & Answers for: Ford p0420 code

...code's P0420 & P0430 The codes are Catalyst System Efficiency Below Threshold (Bank 1)&(Bank 2). The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm ...

P0420 CODE P0420 : Catalyst System Efficiency Below Threshold This quite simply means the catalytic converter is not doing it's job.

...code p0420 and p1507 what is it? Repair information for the OBD-II trouble code P0420 - Catalyst System Efficiency Below Threshold (Bank 1) Answer P1507 means "Idle Air Control Underspeed Error". It ...

what does trouble code P0420 and what are the most common causes P0420 Catalyst System Efficiency Below Threshold (Bank 1) ____________ VAS 5054A With OKI Chip

P0420 Toyota Camry 2002 Go to this URL: http://www.obd-codes.com/p0420 and look at the section titled "What does that mean". You will see several possible causes for this error code.

2006 FORD FREESTAR CODE P0420 WHAT WILL IT TAKE TO FIX THE PROBLEM P0420 = Catalyst System Efficiency Below Threshold Bank 1 Start wit checking O2 sensor and wires after catalytic converter.

I HAVE A 2005 FORD EXPEDITION THE PROBLEM IS A CODE P0420 http://www.ford-trucks.com/forums/1011390-06-expedition-xlt-p0420-code.html

...solution, as there are many that will damage the sensor. Buy a cleaner that is made specifically for MAF sensors. The P0420 code will probably clear up if the MAF sensor clears the other two

...Code P0420 Failed emissions P0420 Catalyst System Efficiency Below Threshold Bank 1 Probably the cat is bad .You need to have it tested How To Diagnose Check Engine Light Code P0420 Catalyst Bank ...

...P0420 diagnostic trouble code (DTC) indicates that the vehicle's onboard computer has detected a problem with the catalytic converter. If you have recently installed a new catalytic converter on your ...