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o2 sensor

  1. General Troubleshooting and Technical Help
    I brought my 2005 FXT to the Subaru specialty shop to replace the rusty oil pan. I could have done it at home but they had done many without removing the intake manifold. They did a great job, left the silicone sit for 24 hours, BUT when I got the car back I drove about 10 miles and the Temp...
  2. Lighting and Electrical
    I was chasing down a O2 sensor CEL...P0031 and P0037 related to the O2 sensor heater. It led me to check my fuses and I discovered that the SBF#5 (which the O2 sensor runs through, among other things) was so badly corroded that the fuse box male pins broke off. This is no longer a matter of...
  3. General Troubleshooting and Technical Help
    Greetings, I have a 2009 Forester 150k miles that throws a P0420 code, it happened 4 times over the course of six months and has gone away after a few days until now. No symptoms of other issues, just the code and loss of cruise. A few questions. Is it worth trying to replace O2 sensor first to...
  4. General Troubleshooting and Technical Help
    I have a 2001 Subaru Forester (base model) with 250,000 miles. Within the past 100,000 miles, I've changed my downstream O2 sensor 3 times. My check engine light just popped back on this last week, and my car has begun having some trouble idling again. I'm in full anticipation of it throwing a...
  5. EJ25 - 2.5L Non-Turbo (1998-2010)
    I'm removing my engine on my 05 X and at the point where I'm pulling all my grounds and harness points, including disconnecting the O2 sensor harness from the engine block. Please see the picture below. Question: Does the O2 harness that's on the metal bracket shown slide off this bracket? I...
  6. General Troubleshooting and Technical Help
    Nearly at 180,000 miles and the check engine light came on recently with flashing cruise control light. The error code is P0031. I ordered a replacement sensor which just arrived today. I started removing the plastic guard underneath the car to get to the front O2 sensor, but then noticed quite...
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