What is code P0420 Nissan?

Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by your Nissan.

How many O2 sensors does a Nissan Versa have?

Oxygen sensors are located before and after the catalytic converter. A vehicle may have two to five oxygen sensors, and sometimes even more.

How much is a Cadillac converter for a 2007 Nissan Versa?

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How to fix P0420?

Parts and Tools Needed

Bare the Wires. This procedure is being done on a set of O2 Wiring Harness Extenders.

Take Connector Apart. Use the tool from the Carving Set to pry out the red locking tab from the end of the connector.

Adding Electrical Components. Solder the short lead from the capacitor to the lead on one end of a resistor.

Finishing Up.

Is it important to fix code P0420?

The P0420 code makes your car’s emissions bad for the environment, though, so you should fix it as soon as possible. What Is the Causes of P0420? The most common cause of the P0420 code is a faulty catalytic converter. It can also be caused by a faulty O2 sensor, exhaust leak, intake leak, or wrong placement of the catalytic converter.

What to do with a P0420 code?

Cleaning the catalytic converter

Replace catalytic converter

Replace to a genuine original catalytic converter

Replace front O2 sensor

Replace rear O2 sensor

Repair faulty wirings

Fix oil burn

Fix misfires

Fix lean/rich fuel mixture

Check the data with an OBD2 scanner

How to fix P0420 code?

Replace muffler or repair leaks in the muffler.

Replace exhaust manifold or repair leaks in the exhaust manifold

Replace exhaust pipe or repair exhaust pipe leaks

Replace catalytic converter (most common)

Replace engine coolant temperature sensor

Replace front or rear oxygen sensor

Repair or replace damaged wiring to oxygen sensor (s)