What does the P0420 code on a jeep mean?
P0420 JEEP Tech Notes As the code description implies the P0420 code means that the vehicle’s control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting).
What does it mean if your OBD code is p04020?
It is important that the front and rear o2 sensors pass the Mode 6 tests. If they fail, false readings could potentially confuse the OBD-II software and trigger a false P04020 code. In most cases, the failing catalytic converter is not dangerous and poses no risk to the occupants of the car.
What to do if your catalytic converter says P0420?
Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0420 code is combined with other codes, try fixing the other codes first. What does this mean? Cost of diagnosing the P0420 JEEP code Labor: 1.0
What does code P0420 mean on PCM?
Code P0420 represents a problem. However, if the downstream O2 sensor starts sweeping between rich and lean, or constantly reads a rich or lean condition, that’s an indication to the PCM that the cat converter isn’t doing its job of cleaning up the PCM’s mistakes.
What does P0420 mean on a Jeep Cherokee?
P0420 JEEP Tech Notes. As the code description implies the P0420 code means that the vehicle’s control module has detected that the three-way catalytic converter is not working properly (is not as efficient as the factory is expecting).
What causes P0420 Jeep catalytic converter to malfunction?
P0420 JEEP Possible Causes Faulty Three-way Catalyst Converter Bank 1 Exhaust Tube Intake Air Leaks Faulty Oxygen (O2) Sensor Faulty Fuel injector(s) Leaking Fuel Injector (s) Faulty Spark plugs Improper Ignition Timing Faulty Engine Control Module (ECM) Dirty Air Filter What does this mean? How do I fix code P0420 JEEP
What does it mean when your oxygen sensor says P0420?
Oxygen sensors are only a part of a greater system, meaning if the p0420 code (or p0141, or p0135) is thrown, that doesn’t necessarily indicate the oxygen sensors need replacement. Rather, there could be something else in that system does that’s causing the oxygen sensors to appear faulty.
What to do if your Saturn catalytic converter says P0420?
Replacing the oxygen (O2) sensors may sometimes fix the code, but in most cases the catalytic convert needs to be replaced to fix the problem. If the P0420 code is combined with other codes, try fixing the other codes first. The cost of diagnosing the P0420 SATURN code is 1.0 hour of labor.