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Old 10-06-2012, 03:02 PM   #12744
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Join Date: Aug 2012
Location: Napa, California
Posts: 379
My Ride: 01 BMW 325ci 3.0L
Originally Posted by tock172 View Post
O2 sensors are probably one of the easiest things to do on an e46. Perhaps easier than your standard oil service. What issues are you encountering?
The wiring is messed up, when i swapped the motor i made sure the o2's where in the right spot, but i have a random misfire while cruising due to engine ruining too rich, and o2 sensors not working properly, while inspecting wiring with my new snap on Digital multi meter i noticed that a few wires were shorted together. So now i am repairing the wire harness and am having issues with rerouting the harness to get to the spot thats shorted out

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