Air flow sensor may fail at higher mileages on Toyota 4Runner

Problem overview

At higher mileages (125,000+) the Mass Air Flow Sensor may cause the vehicle to idle rough, run rich and even stall. Our technicians recommended to replace the Mass Air Flow Sensor with a factory unit because the aftermarket units have very mixed results.

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Air flow sensor may fail at higher mileages on Toyota 4Runner

Problem overview

Toyota 4Runner vehicles with this problem

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