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On my 93 it is right after the pipes meet from the left and right heads, it is pointed up toward the floorboard. Warm the pipe up a little to make it easier to remove by running the engine for a couple of minutes prior to removing the sensor.

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โˆ™ 2006-04-04 02:05:02
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Q: Where is the oxygen sensor unit located on a 1994 Blazer with a 4.3 Vortec engine?
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