Location of 1994 infiniti j30 o2 sensors. I was told there are 4 by inf parts man. Ck Engine lite on, runs rough.
There will be one on each side of the lower part of the engine on the catalysts, and then there will be two more on the exhaust tubes roughly halfway between the engine and the muffler. You should be able to look at the top of the engine and see four connectors with colored braided wires. They should be white, red, blue and black. You can trace those wires directly to the O2 sensors.
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Good info. Thanks, Pingman
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