I have a 2000 right hand drive XJ, with a 4.0, automatic and 2 wheel drive. I have been fighting an electrical issue for 6 months and am at my end with this thing, getting ready to start it on fire. The fuse for the O2 system under the hood keeps blowing, but only after the vehicle starts. With the key in the on run position without starting all is well. But after starting the engine, the fuse blows about 3 seconds after. Also the TPS is slow to respond to the pedal being pushed. I have chased every wire and replaced both O2 sensors as well as all sensors under the hood. The ECM shows it was reman in 2012. I am wondering what else the O2 circut shares or what is eatting the fuse after the 3 seconds that is not running before start up? Any help would be great and keep me sane.