Ford Focus P0440: Meaning, Causes, How to Fix

The P0440 code is a common trouble code that many Ford Focus owners may encounter. It indicates that there is an issue with the car’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more

P0449 Ford Focus

A somewhat common issue with the Ford Focus is the P0449 code. This code references a number that is given to you when you plug your Focus into a OBD2 scanner. P0449 deals with the evaporative emissions control (EVAP) system. It often appears with, or is related other codes, such as P0420, P0446, and very … Read more

Ford Focus P0442 Engine Code: Causes + How to Fix

One of the most common issues that happens with the Ford Focus 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

Ford Focus P0304: Cylinder 4 Misfire – Diagnosis + Fix

If your Ford Focus 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. If … Read more

Ford Focus P0455: Meaning, Causes, + How to Fix

P0455 in the Ford Focus 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 Focus. But, whenever the check engine light is on, it’s … Read more

Ford Focus P0430 Code: Causes + How to Fix

This page is meant to help you troubleshoot the Ford Focus 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

Ford Focus P0446: Meaning, Causes, How to Fix

A prevalent issue with the Ford Focus is the P0446 code. This code corresponds to a specific number obtained when connecting your Focus 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

Ford Focus P0420: Meaning, Causes, + How to Fix

This page is meant to help you troubleshoot the Ford Focus 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

P0303 Ford Focus: Cylinder 3 Misfire Diagnosis

If your Ford Focus 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. If … Read more

Ford Focus P0302: Cylinder 2 – Misfire (Causes + How to Fix)

P0302 in the Ford Focus is a common OBD II trouble code. It indicates that your car’s second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. If it’s bad enough to cause your Focus’s check engine light to come on, you shouldn’t drive your car at … Read more