No power to coil or fuel pump
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No spark
93 ram 5.2 4x4 been sitting for 3 years. It wouldn't even crank until I replaced starter relay and now cranks. Replaced distributor cap, rotor, ignition coil and all relays. Still no spark. Thinking it's the PCM/ECM/ECU computer but don't want spend too much $ until I can rule out the simple stuff .Thanks.