How do I fix my Mitsubishi P0421?

How do I fix my Mitsubishi P0421?

Repairs that can fix the P0421 code may include:

  1. Replacing the catalytic converter.
  2. Replacing the oxygen sensor.
  3. Repairing or replacing wiring that is associated with the oxygen sensor.
  4. Replacing the powertrain control module.

What can cause P0421?

The most likely failure that causes this code is the Catalytic Converter, but oftentimes the Catalytic Converter can fail due to the engine running poorly. Always make sure the engine is running properly before replacing the Catalytic Converter.

What does warm up catalyst efficiency below threshold mean?

Diagnostic trouble code (DTC) P0431 stands for “Warm Up Catalytic Converter, Bank 2—Efficiency Below Threshold.” It means that your car’s primary computer or powertrain control module has detected that the catalytic converter is not efficient enough based on factory specification.

What does P0421 mean?

warm-up catalytic converter
Code P0421 indicates a problem with the warm-up catalytic converter (also known as the “Light Off Cat”). That’s the catalyst nearest the engine. There is another catalyst behind this catalyst – that’s not the one this code refers to. That rear catalyst isn’t monitored.

How much does it cost to replace catalytic converter?

between $945 and $2475
Catalytic converter replacement isn’t cheap. For most vehicles, the average cost of a catalytic converter repair is between $945 and $2475 including parts and labor. The catalytic converter cost itself can be up to $2250 of that. That might be close to your car’s value or more!

How much is a Mitsubishi catalytic converter worth?

Mitsubishi Outlander Catalytic Converter Replacement Cost Estimate. The average cost for a Mitsubishi Outlander catalytic converter replacement is between $1,513 and $1,545. Labor costs are estimated between $89 and $113 while parts are priced between $1,424 and $1,432.