What does the number P0420 mean on a Toyota Tacoma?
This code number references a number that is given to you when you plug your Toyota Tacoma into a OBDII scanner. It doesn’t matter which model you have, this OBDII code has the same meaning for all of them. P0420 is a OBDII trouble code. The code technically stands for:
What is the trouble code on a Toyota Tacoma?
One of the most common trouble codes with all Toyota vehicles is the P0420. This code number references a number that is given to you when you plug your Toyota Tacoma into a OBDII scanner. It doesn’t matter which model you have, this OBDII code has the same meaning for all of them. P0420: Catalyst System Efficiency – Below Threshold.
Where is the P0420 sensor on a car?
P0420 refers to the catalytic converter or – more specifically – the oxygen (O2) sensors before and after it on the bank 1 side of the exhaust system. On most vehicles, there is an O2 sensor both in front (upstream) and behind (downstream) the catalytic converter. Normally, these two O2 sensors will have different readings when the car is running.
Why does my Toyota Tacoma not pass emissions?
The software in your vehicle believes that the catalytic converter is no longer doing its job. If your vehicle has the P0420 code, it won’t pass emissions so please be aware of that. The P0420 code in a Toyota Tacoma will often be thrown one of your oxygen sensors are not functioning properly.
What causes a bad oxygen sensor on a Toyota Tacoma?
In the Tacoma, OBDII P0420 is often caused by a bad oxygen sensor, but there can be other causes as well. One of the most common trouble codes with all Toyota vehicles is the P0420.
Which is the opposite of p0401 in Toyota?
P0402 Code – Toyota. Excessive EGR flow. P0402 is the “Exhaust Gas Recirculation Flow Excessive Flow Detected” code, and it’s basically the opposite of a P0401 code.
What does P0300 mean on a Toyota ECM?
When this code is present in your ECM, your vehicle’s computer has detected that not all cylinders are firing as they should. P0300 indicated a random, or multiple misfires. A misfire code can be triggered due to: This code indicates that a misfire has been detected on engine cylinder 1. Here are the possible causes: