Pontiac Aztec P0441: Meaning, Causes, How to Fix

P0441 is one of the more common OBD II codes that can occur in the Pontiac Aztec.  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 to … Read more

Pontiac Aztec P0304: Cylinder 4 Misfire – Diagnosis + Fix

If your Pontiac Aztec 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 vehicle’s fourth cylinder is misfiring. P0304 is a drivability concern and should be dealt with right away. If … Read more

P0303 Pontiac Aztec: Cylinder 3 Misfire Diagnosis

If your Pontiac Aztec 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 vehicle’s third cylinder is misfiring. P0303 is a real drivability concern and should be dealt with right away. If … Read more

Pontiac Aztec P0141 Diagnosis

P0141 is a very common OBDII code that occurs in the Pontiac Aztec. 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 sensor … Read more

Pontiac Aztec P0505: Idle Air Control System- Malfunction

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

Pontiac Aztec P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Pontiac Aztec 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

Pontiac Aztec P0404: EGR Circuit → Range/Performance

With the Pontiac Aztec, P0404 is going to have the same meaning as it would in any other vehicle. It’s a generic powertrain code that stands for: P0404: EGR Circuit → Range/Performance While there are several issues that can throw the P0404 code in the Aztec, the most common issue is either going to be … Read more