0
Code P0420 means "Catalyst System Efficency Below Threshold (Bank 1)" P0420 is actually Catalyst System Efficiency Below ThresholdCatalyst System Efficiency Below Threshold.
Bank 1 is the side of the engine with cylinder #1. This code means that the catalytic converter is not cleaning the exhaust properly or the oxygen sensors are sending false info to the computer.
What else can I help you with?
What mean P0420?
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
What does error code p0420 mean on a mountaineer?
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
What does code p0420 mean on your 98 ford explorer?
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
What does error code P0420 mean on a 1998 dodge avenger?
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
Honda accord 2002 LX getting a code P0420 what does that code mean?
Trouble code P0420 means: Catalyst Efficiency Below Threshold (Bank 1)
What does a code of p0420 mean on a 1996 Chrysler Town and Country?
P0420 Catalyst System Efficiency Below Threshold (Bank 1)
What does P0420 mean on a 2006 Jeep Patriot?
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
97 Ford Taurus What does the error code p0420 mean?
Trouble code P0420 means: Catalyst System Efficiency Below Threshold (Bank 1)
What does code P0420 catalytic converter mean on 1999 Honda civic?
Trouble code P0420 means: Catalyst Efficiency Below Threshold (Bank 1)
Have a 2002 LX Honda accord 2.3L getting a code P0420 what does this mean?
Trouble code P0420 means: Catalyst Efficiency Below Threshold (Bank 1)
What is the code p0420 code on a Mercury Mystique?
Trouble code P0420 means: Catalyst system efficiency below threshold (bank 1)
What is fault code P0420 for a dodge neon?
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
