It converts the carbon monoxide and other harmful gases into less harmful emissions. Failing catalytic converter: A catalytic converter helps reduce emissions in the exhaust gases.Your best bet is to call a mechanic and get a proper diagnosis. If you put off getting an oxygen sensor replaced, it will eventually damage your catalytic converter, which can be very costly to replace. The OBD II code will tell the mechanic which one is giving a reading that is outside of its parameters.ĭeterioration of the precious metals inside the oxygen sensor affects the sensors’ ability to give an accurate reading. The majority of vehicles have two to four sensors. If you have a faulty sensor, it will not provide the correct data to the onboard computer. Faulty oxygen sensor: An oxygen sensor monitors the exhaust for unburned oxygen, which indicates engine efficacy and the proper air-to-fuel ratio.If the light stays on, schedule an appointment with a mechanic. Once you have fixed the issue, continue driving to see if the check engine light turns off. If it is damaged, head to your local auto parts store for a new one. If it is loose, a quick tighten could very well solve your problem. When that annoying yellow light pops on, the first thing you should do is pull over and inspect your gas cap. A loose or damaged cap can reduce your gas mileage and increase emissions from your car. Your gas cap acts as the seal for your fuel system and it helps maintain the pressure in your fuel tank. Loose or damaged gas cap: It’s hard to believe that a gas cap can prompt your check engine light to come on, but it can.While a Check Engine Light can come on for a number of reasons, in most cases it is due to one of the following issues: Service type Check Engine Light is on Inspection
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