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    My engine has 113,000 miles. I have only had it...

    My engine has 113,000 miles. I have only had it for a month or so, but it appears to have no modifications. There are no other engine codes coming up. The engine does not seem to be using oil. Last...
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    What do these O2 sensor readings mean?

    I have been trouble shooting an 0420 code on my 2003 Chev Suburban (5.3, 4x4).

    I removed the two o2 sensors on the vehicle passenger side.

    I moved the two sensors from the driver side to the...
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