Lexus IS 300 P0305: Misfire Detected (Cylinder 5)

P0305 is a fairly common trouble code with the Lexus IS 300. It’s and OBD2 code and stands for: P0305 is certainly a cause for concern, and should be considered a threat to the drivability your IS 300. The nice thing about P0305 is that it’s a cylinder specific trouble code, which makes diagnosing the … Read more

Lexus IS 300 P0441: Meaning, Causes, How to Fix

P0441 is one of the more common OBD II codes that can occur in the Lexus IS 300.  It is frequently caused by a loose or bad gas cap, cracked or disconnected EVAP system hoses, vacuum leaks, or a bad purge valve. Always start by taking a look at the gas cap. P0441 is related … Read more

Lexus IS 300 P0304: Cylinder 4 Misfire – Diagnosis + Fix

If your Lexus IS 300 has the P0304 trouble code, you should know that it’s about as common of a code as there is. It’s a generic OBD IIcode (same meaning for all vehicles) that indicates that your car’s fourth cylinder is misfiring. P0304 is a drivability concern and should be dealt with right away. … Read more

P0303 Lexus IS 300: Cylinder 3 Misfire Diagnosis

If your Lexus IS 300 has the P0303 trouble code, you should know that it’s about as common of a code as there is. It’s a generic code (same meaning for all vehicles) that indicates that your car’s third cylinder is misfiring. P0303 is a real drivability concern and should be dealt with right away. … Read more

Lexus IS 300 P0141 Diagnosis

P0141 is a very common OBDII code that occurs in the Lexus IS 300. It is caused by a failure in one of the elements that heat the oxygen sensors, specifically bank 1 sensor 2, which is downstream from the catalytic converter. It technically stands for: The purpose of the heated element in the oxygen … Read more

Lexus IS 300 P0505: Idle Air Control System- Malfunction

P0505 is an OBDII code that deals with the idle air control system in the Lexus IS 300.  It’s a generic code, which means that it has the same meaning for the IS 300 as it would any other vehicle (IS 300 or not). P0505:  Idle Air Control System:  Malfunction When P0505 is triggered, it … Read more

Lexus IS 300 P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Lexus IS 300 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 … Read more