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oxygen sensors
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  1. 5th Gen
    Bad fuel economy with no obvious issues on '97 base Hey all, First time poster here. I have owned my '97 prelude for 6 years now and absolutely love it! I recently had all the engine gaskets/seals replaced, new timing belt, water pump etc. But over the years I have noticed the fuel economy...
  2. 3rd Gen
    I've researched this for hours but can't find any info on O2 sensor position. I first installed Denso sensors 234-1017 (right) and 234-1006 (left) incorrectly, thinking the left sensor was on the left side of the exhaust manifold as I faced the engine. I reversed the position of the...
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