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Poisoned A/F ratio sensor
Posted to Technical Tips Forum on 3/12/2019 24 Replies

I had this Forester in for a complaint of MIL on along with the usual accompanying cruise and traction control disabled. No performance complaint and it ran well on a road test. A P0171 was stored, and I found STFT was at +35% both at idle and under load. MAF ... Login to read more.

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car Vehicle Data

2011 Subaru Forester X Limited 2.5L

Engine2.5 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

2011 Subaru Forester X Limited 2.5L

Engine2.5 L
Trans4-speed Automatic (Electronic)