Electrical problem
1993 Chevy Cheyenne V8 Two Wheel Drive Automatic 130000 miles
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DASH LIGHTS,RADIO,FUEL PUMP WORKS WITH KEY ON, TURN TO START CLOCK GOES OFF EVERYTHING ELSE STAYS LIT. CHECKED STARTER WORKS ON BENCH,CHECKED BATTERY FULL CHARGE,ANY SUGGESTIONS GREATLY APPRECIATED

check spark and fuel pressure

go here for spark/ignition:


http://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm

go here for fuel pressure:


http://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm