I have a 2000 ford focus it has always ran rough an loud and vibrates hard it only has 95,000 miles it has been stalling at idle and is getting worse
I unplug the mass air flow sensor it stays
running but still rough check engine light is
on the codes are po113 and po171 I
cleaned the mass air flow sensor and still
nothing different anyone know the
P0113 is the air intake sensor. This is usually in the rubber tube between the air filter and throttle body. usual cause is it's unplugged or a wire is broken to it. P0171is a lean code which is usually caused by a vacuum leak or low fuel pressure. The air intake sensor could be causing both codes.
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