2003 ford taurus mass air flow sensor problems

We have done some research and posted common problems for some cars, please read further. Without a scan tool, the only way to find the problem is to check the basics and research common problems with your particular car make, year and model. With a good scan tool that shows the live data diagnosing the code P0171 is fairly easy. Read more: Catalytic Converter: problems, replacement options. Improperly installed aftermarket intake Faulty PCV valve or other parts of PCV system Clogged or faulty Mass Air Flow sensor (MAF) Another symptom of an engine running lean is when there is an engine knock or detonation (pinging) under load or when accelerating uphill. The engine may also be difficult to start. If this code is caused by a vacuum leak, there might be a hissing noise coming from the engine. When an engine runs lean it lacks power and may stall when the car is stopped at a stop sign. The OBDII trouble code P0171 - System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too little fuel.ĭriving a car with the code P0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher.

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2003 ford taurus mass air flow sensor problems