P0420 Toyota Sequoia

This page is meant to help you troubleshoot the Toyota Sequoia P0420 trouble code. It covers Toyota Sequoia P0420 meaning, symptoms, causes, and possible solutions. In the Sequoia, 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 … Read more

P0401 Toyota Sequoia

P0401 is a common OBDII trouble code that’ll pop up in the Toyota Sequoia. It has to do with the emissions system and stands for: P0401: EGR → Insufficient Flow The EGR system on a vehicle is responsible for recirculating exhaust gasses in order to lower the vehicles emissions output. There are three main parts … Read more