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Found 2 results

  1. Tort62
    I got a P1133 code which is upstream O2 sensor gone bad I think. Anybody know where it's located or have a video. 99 legacy L 2.2
  2. Mr.Atlantis
    I received the following 2 codes late last year: P0030 Heated oxygen sensor heater control circuit Bank 1 Sensor 1 & P0134 Oxygen sensor circuit no activity detected Bank 1 Sensor 1 After resetting the codes about 2 or 3 times, I replaced my Upstream O2 Sensor. No issues until just recently. Only this time I got the P0134 code alone. Either way, it's pointing me to the same O2 Sensor I just replaced. Before I purchase another, more expensive O2 Sensor - are there any other areas 'pre-upstream sensor' I should be looking in to? Sidenote 1 When the code popped up most recently, I removed the Sensor and cleaned with a wire wheel and replaced. Checked all contacts for resistance and continuity. Everything looked good and about 2 days later the CEL went out and didn't come back for about a month (where I'm at now). Sidenote 2 I burn a full quart of oil in between Oil changes (every 4,000 mi.). I mention this because I worry I may have the beginning signs of an internal head gasket leak (oil transfer between galleys and cylinders) which may jack up my combustion and fowl up O2 sensors. Just a thought though, I can't be sure of this as there seems to be no smoke from the rear at start up. Regards,
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