What code is po422?

What code is po422?

OBD II Fault Code Code P0422 indicates that the Bank 1 Main Catalytic Converter’s emissions efficiency has fallen below the minimum allowable limit. This threshold is tracked by a Catalyst Monitoring Oxygen Sensor located on or near the outlet of the Catalytic Converter.

What is code P0421?

The P0421 code means that the powertrain control module is noticing that the catalyst system is not performing as it should during warm up conditions. The powertrain control module uses data received from the upstream and downstream oxygen sensors and compares the two readings given.

What is a warm up catalytic converter?

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 causes a p0422 code on a car?

P0422 Possible Causes 1 Warm Up Three Way Catalytic converter deterioration or malfunction 2 Exhaust system leaks 3 Loose front or rear HO2Ss 4 Faulty front heater O2 sensor 5 O2 sensors harness is open or shorted 6 O2 sensors poor electrical connection

How long does it take to fix a p0422 code?

If the P0422 code is combined with other codes, try fixing the other codes first. The cost to diagnose the P0422 code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.

When does Bank 1 indicate a p0422 DTC?

If at any point the PCM detects that the post-catalyst o2 sensor is switching too rapidly (indicating no change between the inlet and outlet of the catalytic converter) it interprets this as a catalyst that isn’t functioning properly. Bank 1 is the side of the engine that has cylinder #1. Symptoms of a P0422 DTC may include:

What does p0422 main catalyst efficiency below threshold mean?

P0422 main catalyst efficiency below threshold (Bank 1). P1425 tank ventilation valve short to ground and code P1472 evap control system LDP circuit short to ground. What do they mean… p0422 kia sportage.