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im assuming its a 3.0 V6. bank2 sensor is on the exhaust manifold, in front, easy to see and take off. it looks exactly like a O2 sensor but its called a air/fuel ratio sensor. bank 1 sensor is in the back against the firewall but below, on the exhaust manifold. you cant see it from the top. try going from under. i never did it myself, but did trouble shoot these problems.
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