What is po432?
What is po432?
The P0432 code means that your catalytic converter for bank 2 of your engine is performing below what it should be. Generally, this is a sign that the converter has failed, but the problem may be related to an oxygen sensor. The car’s computer monitors converter operation and efficiency with oxygen sensors.
What does the code P0420 mean on a Dodge?
Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by your Dodge. Dodge P0420 Symptoms Check Engine Light is on Lack of power from the engine
What happens when the oxygen sensor goes bad in a Dodge Dakota?
More often than not, when an oxygen sensor in your Dakota goes bad, it will throw a diagnostic trouble code. There are many oxygen sensor related codes. These codes correspond with what side of the engine they are on (known as the “bank” for cylinder bank) and how far down stream they are.
What does P0420 mean on a catalytic converter?
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).
Why does the Check Engine light come on on a Dodge Dakota?
Oxygen sensors can change the way that your Dakota’s engine runs. Most of the time, the check engine light will come on. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test.
What does the P0420 code mean on a Dodge?
P0420 DODGE 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 the P0420 oxygen sensor to read lean?
If the upstream and downstream oxygens sensors are both switching from rich to lean, that’s the sign of a dead catalytic converter. An exhaust system leak really screws up the P0420 testing routing. An exhaust leak near the upstream sensor can cause the downstream sensor to read a steady lean condition.
Here’s the official definition of a P0420 trouble code: P0420 Catalyst System Efficiency Below Threshold (Bank 1). What the code is telling you is that the catalytic converter has failed an efficiency test. In 99.5% of the cases, this code means that the catalytic converter itself is bad and must be replaced.
How does a P0420 readiness monitor test work?
During a P0420 readiness monitor test, the ECM will purposely and rapidly command a very rich and very lean mixture to force the downstream sensor to read the excess fuel or oxygen. Then it will stop the excessive air/fuel and watch the downstream sensor again, looking for a steady reading.
