Tag: p0171
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What is Trouble Code P0171 and How Can it be Fixed on Ford F150 Models?
Understanding Trouble Code P0171 on Ford F150 The P0171 Code on Ford F150 shows that the air-fuel mixture is off. This could be due to intake air leaks, faulty O2 sensors, misfiring, bad fuel injectors, bad exhaust manifold gasket, and more. Vacuum leaks in the intake manifold, out-of-sync ignition timing, and a blocked fuel filter…