P1171 Toyota Fuel System Lean During Acceleration

P1171 Toyota Fuel System Lean During Acceleration

Possible causes

– Plugged fuel filter or low fuel pressure
– Faulty or dirty Mass Air Flow sensor

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

Toyota Vehicle:Toyota Prius,Toyota Celica,Toyota Supra,Toyota Carina,Toyota Camry,Toyota MR2,Toyota Aygo,Toyota 4Runner,Toyota Avalon,Toyota Camry,Toyota Corolla,Toyota FJ Cruiser,Toyota Highlander,Toyota Land Cruiser,Toyota Matrix,Toyota Prius,Toyota RAV4,Toyota Sequoia,Toyota Sienna,Toyota Solara,Toyota Tacoma,Toyota Tundra,Toyota Yaris,