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  1. Problems & DIY Maintenance
    My pre-cat oxygen sensor is stuck at around 2.7 volts under normal driving conditions (expected range 0.1 to 0.9 volts). It doesn’t matter if it’s the old sensor with 180k miles on it or the brand new sensor I just installed today, it still reads around 2.7 volts. Has anyone else experienced...
  2. Problems & DIY Maintenance
    Hey guys. I had a shop replace 02 sensors on my 05 outback XT, as well as a radiator hose with a slow leak. Now after a couple weeks of driving, Im getting an a P171 error code. I checked all my intake connections, look good. I didn't get carburetor spray yet to test idling. Im wondering if the...
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