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Check for exhaust leaks, check O2 sensor functionality, replace catalyst.

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15y ago

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What does this code mean Catalyst Below Threshold Bank 1?

It means that the catalytic converter is not performing to specifications and should be replaced.


What does code p0420 mean?

Code P0420 means "Catalyst System Efficency Below Threshold (Bank 1)" P0420 is actually Catalyst System Efficiency Below ThresholdCatalyst System Efficiency Below Threshold. This means that the secondary O2 sensor detects that the catalytic converter isn't working as efficiently as it should. This engine code can be triggered by any one of the following:1.) The catalyst in the catalytic converter is cracked, clogged, or otherwise damaged.2.) The secondary O2 sensor is malfunctioning.3.) There is an exhaust leak.4.) The computer unit is faulty.Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)


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What does P0433 means in Mazda 626LX and what should you get fixed?

Try this website for code descriptions http://autorepair.about.com/cs/troubleshooting/l/bl_obd_main.htm PO433 is "Heated Catalyst Efficiency Below Threshold (Bank 2)"


What is the meaning of PO42O?

"PO420" is an error code the car delivers to let the driver know that the Catalyst system Efficiency is below the threshold. If this error occurs, the car should be taken to a certified mechanic to resolve the issue.


What are solutions code p0420 on a Nissan?

P0420 = Catalyst System Efficiency Below ThresholdCatalyst System Efficiency Below Threshold. This means that the secondary O2 sensor detects that the catalytic converter isn't working as efficiently as it should. This engine code can be triggered by any one of the following: 1.) The catalyst in the catalytic converter is cracked, clogged, or otherwise damaged. 2.) The secondary O2 sensor is malfunctioning. 3.) There is an exhaust leak. 4.) The computer unit is faulty.


What does the warning HEAT light on dashboard of Mazda eunos?

This is the catalyst heat sensor light. It comes on when the engine is started and it should then go out. If it doesn't, assume the catalyst has failed. If the light comes on while driving it means your catalyst has failed. The catalyst usually fails if the car misfires and sends some unburnt fuel down the exhaust.


How do you fix a Low Catalyst Effiency Bank 1 code P0420 on a 2001 Toyota Camry?

This code is generic and is the same on all vehicles. P0420 = Catalyst System Efficiency Below ThresholdCatalyst System Efficiency Below Threshold. This means that the secondary O2 sensor detects that the catalytic converter isn't working as efficiently as it should. This engine code can be triggered by any one of the following: 1.) The catalyst in the catalytic converter is cracked, clogged, or otherwise damaged. 2.) The secondary O2 sensor is malfunctioning. 3.) There is an exhaust leak. 4.) The computer unit is faulty


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