Toyota camry ecu diagnostic code po402
![toyota camry ecu diagnostic code po402 toyota camry ecu diagnostic code po402](http://pop.h-cdn.co/assets/cm/15/05/54c81ef1b04ee_-_pmx0206satmech005_large.jpg)
Because of this, the catalytic converter will not get hot enough and will trigger a P0420 code. I have also seen non-OEM catalytic converters that have been installed too far away from the engine on the exhaust pipe. Some cheaper catalytic converters may not be enough, and in some cases, you have to buy a brand new catalytic converter from the manufacturer. It could be a faulty bad catalytic converter, but I have seen many cases when the catalytic converter is pretty new, but it’s not an original OEM part. It can also be caused by a faulty O2 sensor, exhaust leak, intake leak, or wrong placement of the catalytic converter. The most common cause of the P0420 code is a faulty catalytic converter. The P0420 code makes your car’s emissions bad for the environment, though, so you should fix it as soon as possible. The only thing that can happen is that the catalytic converter is so damaged that the catalytic converter parts come loose and blocks the exhaust pipe, which is pretty unlikely to happen. Low – The P0420 code will in most cases not create any further problems with your car’s engine. However, In most cases, you will most likely notice any symptoms except the check engine light with the P0420 code stored in the engine control unit.
![toyota camry ecu diagnostic code po402 toyota camry ecu diagnostic code po402](https://www.picclickimg.com/d/l400/pict/153511221033_/Toyota-Camry-Engine-Computer-ECM-ECU-Control-Module.jpg)
In rare cases, you can also notice issues like misfires, higher fuel consumption, or a bad odor smell coming from the exhaust pipe. The most common symptom of code P0420 is a check engine light on the dashboard. In most cases, a P0420 code is caused by a bad catalytic converter. If the efficiency is low, the P0420 code will be triggered. The ECM uses two O2 sensors, one in the front and one in the back of the catalytic converter, to measure efficiency. It can either be caused by a faulty catalytic converter or a false alarm from any of the sensors.
![toyota camry ecu diagnostic code po402 toyota camry ecu diagnostic code po402](https://demo.vdocuments.mx/img/378x509/reader025/reader/2021043004/58737cbf1a28ab866d8b8bf0/r-1.jpg)
P0420 – Catalyst System Efficiency Below Threshold (Bank 1) What does the P0420 Code Mean?Ĭode P0420 indicates the catalytic converter’s efficiency is below the threshold. Can I drive with the P0420 code? Definition