Can bad muffler cause P0420?
No, a bad muffler won’t cause a P0420 to set. P0420 is an efficiency failure of the catalytic converter. Also if you can hit the converter and hear a rattling noise inside then the converter material is broken up and the converter will need to be replaced.
How many catalytic converters does a 2002 Honda Accord have?
To have greater protection of the environment against the harmful effects of car emissions, modern cars including Honda makes are equipped with three-way catalytic converters.
How much does a catalytic converter cost for a 2002 Honda Accord?
We currently carry 16 Catalytic Converter products to choose from for your 2002 Honda Accord, and our inventory prices range from as little as $142.99 up to $373.99. The average cost for a Honda Accord catalytic converter replacement is between $1,486 and $1,512.
What is the catalytic converter code on a Honda Accord?
While code P0420 is a very common code across all manufacturers, some Honda models and most notably sixth-generation Honda Accord models from the early 2000’s were plagued by substandard catalytic converters that were known to fail prematurely.
What does Honda catalytic converter code P0420 mean?
The function of the catalytic converter is to break down harmful pollutants that are created by your Honda during the combustion cycle and convert them into harmless gases. Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by your Honda. Honda P0420 Symptoms
What’s the problem with my Honda Accord P0420?
It covers Honda Accord P0420 meaning, symptoms, causes, and possible solutions. In the Accord, OBDII P0420 is often caused by a bad oxygen sensor, but there can be other causes as well. One of the most common trouble codes with all Honda vehicles is the P0420.
What does the P0420 OBD-2 error code mean?
@elizaalmstedt P0420 is the “Catalyst System Efficiency Below Threshold (Bank 1)” error code. Causes for this could be any of these (and many more): Damaged or leaking exhaust manifold / catalytic converter / muffler / exhaust pipe Most common likely cause for your model and year Honda would be a failed catalytic converter.
The function of the catalytic converter is to break down harmful pollutants that are created by your Honda during the combustion cycle and convert them into harmless gases. Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by your Honda. Honda P0420 Symptoms
What does a catalytic converter do on a Honda Accord?
Catalytic Converter – A catalytic converter is responsible for scrubbing out as much pollution as possible from the Accord’s exhaust. Over time, they can become clogged. Although, modern catalytic converters are supposed to last the life of most vehicles, it could be there is some underlying problem if it has clogged.
It covers Honda Accord P0420 meaning, symptoms, causes, and possible solutions. In the Accord, OBDII P0420 is often caused by a bad oxygen sensor, but there can be other causes as well. One of the most common trouble codes with all Honda vehicles is the P0420.
@elizaalmstedt P0420 is the “Catalyst System Efficiency Below Threshold (Bank 1)” error code. Causes for this could be any of these (and many more): Damaged or leaking exhaust manifold / catalytic converter / muffler / exhaust pipe Most common likely cause for your model and year Honda would be a failed catalytic converter.
Is it important to fix code P0420?
Repairing error code p0420 is generally inexpensive, so there’s no major cause for concern if it appears. The P0420 diagnostic trouble code is known as a generic fault code. It is set when the Onboard Diagnostic II or OBD II catalyst monitor can sense a drop in its converter efficiency.
What is triggering my P0420 code?
P0420 is triggered in the engine control module when there is a problem with the efficiency of the catalytic converter . The engine control unit uses two O2 sensors, one in the front of and one behind the catalytic converter to measure the efficiency of the catalytic converter.
What does the engine error code P0420 mean?
A P0420 Code means that the engine control unit recognizes that the catalytic converter’s efficiency is below the threshold. The ECM uses two O2 sensors, one in the front and one in the back of the catalytic converter, to measure the efficiency. If the efficiency is low, the P0420 code will be triggered. In most cases, a P0420 code is caused by a bad catalytic converter .
What causes a P0420 code?
The code P0420 can be caused by an engine problem that’s pouring too much fuel into the catalytic converter, excess fuel that the PCM can’t control, a vacuum leak that’s causing excess air to enter the catalytic converter, OR, a damaged catalytic converter.