![]() In case of doubt, the sensor may have to be replaced. However, it can happen that there are no error codes. If you see P0100, P0101, P0102, P0103 or P0104 code in the OBD2 scanner, it indicates a problem with the mass air flow sensor. Reading out the fault codes using a diagnostic device is relatively reliable. How to check if the MAF sensor is bad in Chevy Trax? In rare cases, the MAF sensor can also be damaged by oil vapors flowing back out of the crankcase ventilation after the engine has been switched off. When driving fast in heavy rain, water can occasionally pass through the air filter, which can severely impair the function of the MAF sensor. However, the sensor can also malfunction earlier. With a noticeable loss of performance and high mileage, a defective MAF sensor should definitely be considered. As the mileage increases on your Trax, it can happen that increasingly inaccurate values are sent to the engine control unit. The mass air flow sensor is a wearing part. This can cause the engine warning light to illuminate in the instrument cluster and the fault can be read out by a diagnostic device. The engine runs too “lean” or too “rich”. The optimal amount of fuel can no longer be calculated which results in either too little or too much fuel injected into the combustion chambers. If the MAF sensor is defective or dirty, it does not send correct measured values to the control unit of Trax. What happens when MAF sensor malfunctions in Chevy Trax? It is not only important for power delivery in your Trax, but also for the lowest possible pollutant emissions. The mass air flow sensor is part of the engine’s intake system and is located between the air filter box and the throttle valve. Dirty or faulty mass air flow sensor (MAF)ĭefective or dirty mass air flow sensor (MAF) in your Chevy Trax can result in loss of power, uneven engine running, erratic idling, misfires, poor exhaust emission values including black smoke. So this is the first thing you should check. Replacing the filter on your Trax takes a few minutes and does not require any special knowledge. In the worst case, the engine can stall if the air filter is extremely clogged. ![]() This ultimately also increases fuel consumption. Find out more about our advertising opportunities.If the air filter is dirty in your Chevy Trax, it can have a negative effect on the performance of the engine, as less air passes through the dirty filter which suffocates the engine. Advertise Advertising on is well-targeted, has unique benefits, and is highly successful. Looking for something lighter? Read our funny complaints to see people who found humor in a bad situation. Vehicle Problems Find out what cars to avoid, view the latest problem trends, or keep up-to-date with the most recently reported problems. Contact us with any comments or concerns. Car Problem Resources Around the Site Information Find out more about us in the press or read stories from drivers who praise our work.The complaints are organized into groups with data published by vehicle, vehicle component, and specific problem. ® is an online automotive complaint resource that uses graphs to show automotive defect patterns, based on complaint data submitted by visitors to the site.
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