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  1. EJ25 - 2.5L Non-Turbo (1998-2010)
    Hi all, first post here 😀 My 2010 Forester 2.5 auto shows the CEL and traction control warning light, but runs normally. The OBD codes were: P0137 O2 Sensor Low Voltage (Bank 1 - Sensor 2) P0139 O2 Sensor Slow Response (Bank 1 – Sensor 2) The sensor wiring harness is undamaged. (The timing...
  2. EJ25 - 2.5L Turbocharged (2004-2013)
    This is on an '11 FXT, 102k. I replaced the oxygen sensor and used my Accessport to clear the code. I drove the car four or five separate times and it was fine, then the following day the code threw again. What's the next approach to this one?
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