Did you also swap out the cam tone ring on the right side cam? The cam ring is different from '04 to '03 just as the reluctor ring is.
If the cam ring is not the correct one the computer won't feed the spark and fuel to the proper cylinder at the proper time
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2003 Renegade, Black
- 3.7L, 42RLE, 4.10's, 4X Guard Trans skid, Factory Engine, T-case, Tank skids, Modded BoulderBars sliders, OME 927/948, Bilsteins, JBA A-Arms & 1/4" top plate, 1 extra rear iso/side, Moabs with Firestone Destination AT's 255/70-16