Unveiling the Mystery Check Engine Light On But Car Performs Perfectly

Common Causes of Alert · Faulty spark plugs or wires · Malfunctioning mass airflow sensor · Problems with the catalytic converter · Engine ... The check engine light is constantly on: Your vehicle's onboard diagnostic system has determined something is wrong and needs to be fixed. Although your vehicle ... Got a bubble in your fuel line? Turned a corner too hard with a near-empty tank? Started the car with the fuel cap off? Went through a car wash? These codes are ... I would definitely be checking for a poor connection, either at the ECM/Fuel Pump fuse by the battery, or maybe at the ECM connector itself. I ... When you see the check engine light turn on, the first thing you want to do is take your vehicle to an experienced technician. A professional will be able ... While it may be technically possible to drive a Mazda vehicle with the check engine light on, you should not drive the vehicle until the check engine light has ... ... Engine management light on but car has no issues and drives fine ... Most check engine lights that don't change how the car feels or drives ... Many of us have had experiences where the check engine light had come on, but the problem was just an improperly-sealed gas cap. Stop the car, remove the cap, ... It could pop on because of something minor like a loose or faulty gas cap. It could also mean a major engine failure. If you do notice a difference, try driving your vehicle as little as possible until you can bring it in for service. Most likely something is on the verge of ...