1. Check all under-dash and under-hood fuses, using a test light or multimeter.
2. Check for codes, using a scan tool.
3. Check voltage between MAP Sensor connector reference wire (+) and ground, with ignition ON.
4. Check for spark and, if warranted, check distributorless coils:
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Replace platinum plugs, if you have 50,000 miles on them, with the exact MOPAR plug that came in the car.
5. Check for fuel. Listen for the fuel pump whine, when the ignition switch is turned to ON.