![]() ![]() The oxygen sensor is the most common cause of a P0134 error code in a Chevrolet Silverado. The malfunctioning sensor may also be responsible for the engine’s knocking sound. When there is an oxygen sensor in the exhaust, the powertrain control module will reduce the fuel ratio. The oxygen sensor is located in the powertrain control module, which provides the sensor with a base voltage of about 450 mV. Depending on the symptoms, you may need to take your vehicle to a mechanic for a diagnosis.Ī malfunctioning oxygen sensor can also be another cause of a P0134 error code in a Chevy Silverado. The fuel burn rate will be higher when you have a P0134 code. You may also notice a reduction in fuel economy. Another symptom is a foul odor coming from the exhaust. If you have this trouble code, your vehicle’s Check Engine Light will come on and the engine will stall. While there are several possible causes, the most common cause is a bad oxygen sensor or faulty wiring. It is also possible that the sensor wiring isn’t connected correctly, or the oxygen sensor itself has malfunctioned. This code is triggered when the oxygen sensor fails to measure exhaust gases correctly. CausesĪ P0134 error code is a warning that your car’s computer isn’t detecting sensor activity. So, if you have a problem with your vehicle’s OBD, make sure to get it checked by a mechanic right away. A scanner with more information about your vehicle’s specific engine problems may give you a more accurate diagnosis. Some of the codes are manufacturer-specific. This sensor is located in the powertrain control module. If this is the case, you should take your vehicle to a mechanic as soon as possible.Ī P0134 code on a Chevy Silverado 1500 indicates a malfunction with the upstream oxygen sensor. A higher fuel burn rate will increase the costs of gas. Besides this, your fuel economy may be reduced. If you continue driving with this code, you could seriously damage your catalytic converter, which would take a very long time to repair. The P0134 trouble code can cause your vehicle to lose power. This code can also be a result of a faulty power control module. Without proper oxygen in the exhaust, the car uses more fuel and emits harmful gases, including carbon monoxide and hydrocarbons. This sensor is connected to the power control module, which controls the engine. Exhaust leaks can also cause the code to appear, and you can easily determine if you have one by performing a smoke test or visual inspection.Ī P0134 code on a Chevy Silverado means the oxygen sensor in the front of the engine is not active. In some cases, the sensor itself could be faulty and need replacing. An oxygen sensor that has a low voltage reading may be a result of an exhaust leak. Here are some common symptoms of a P0134 code:Ī malfunctioning oxygen sensor is another common cause of the P0134 code. However, it’s not always necessary to bring your vehicle to a mechanic. If you suspect this is the case, it’s time to get it checked by a mechanic. Your car may also smell bad and emit black smoke. Having a problem with your vehicle’s emissions system? You may notice the Check Engine Light turning on and your vehicle running rough. ![]()
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