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, ARB Bull Bar, Smittybilt XRC 9500lb Winch, 4X Guard Trans skid, Skid Row Engine skid, Factory T-case & Tank skids, Custom BoulderBars, JBA Front Coilovers, OME 948 rear springs, Bilstein rear shocks, JBA A-Arms, Moabs with Goodyear Duratracs 265/70-16