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Subaru P1153 - problem
Posted to Technical Discussion Forum on 6/13/2019 24 Replies

I have a Subaru Legacy 2011, with the 2.5L engine, 152K miles, that keeps setting a P1153 DTC "O2 Sensor Circuit range/performance B1S1".

I inspected the upstream A/F sensor and it is not damaged. Connector looks good.

While smoking intake (inducing smoke ... Login to read more.

24 Replies Received (View Replies)

 

car Vehicle Data

2011 Subaru Legacy 2.5i 2.5L

VIN 4S3BMCK63B
Engine2.5 L

car Vehicle Data

2011 Subaru Legacy 2.5i 2.5L

VIN 4S3BMCK63B
Engine2.5 L