P0455 in the Toyota 4Runner is a trouble code that indicates your truck has a LARGE evaporative emissions leak. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. P0455 usually is not an immediate threat to the driveability of your 4Runner. But, whenever the check engine light is on, it’s … Read more
A prevalent issue with the Toyota 4Runner is the P0446 code. This code corresponds to a specific number obtained when connecting your 4Runner to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Definition P0446: EVAP System – Vent Control Circuit – Malfunction Symptoms Usually none Common Causes Bad EVAP Vent Control … Read more
One of the most common issues that happens with the Toyota 4Runner is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system. While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more
P0301 is a fairly common trouble code with the Toyota 4Runner. It’s an OBD2 code and indicates that your vehicle’s first cylinder is misfiring. P0301 is certainly a cause for concern and should be considered a threat to the drivability of your 4Runner. Fixing P0301 should be considered a high priority. Unlike a lot of … Read more
P0300 is a generic OBDII code that can occur with the Toyota 4Runner. This code indicates that your vehicle’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, … Read more
One of the most common trouble codes with the Toyota 4Runner is P0171. It indicates that your Toyota 4Runner is running lean on the bank one side. It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. The most … Read more
This page is meant to help you troubleshoot the Toyota 4Runner P0430 trouble code. It covers the P0430 code’s meaning, symptoms, causes, and possible solutions. P0430 is an emissions-related trouble code and is virtually never a breakdown risk. P0430 is usually caused by a catalytic converter issue or a bad O2 sensor. Table of Contents … Read more
This page is meant to help you troubleshoot the Toyota 4Runner P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more
P0401 is a very common OBDII trouble code that’ll pop up in the Toyota 4Runner. It has to do with the emissions system and stands for Exhaust Gas Recirculation (EGR)→ Insufficient Flow. The EGR system in your vehicle is responsible for recirculating exhaust gasses in order to lower the vehicle’s emissions output. There are three … Read more