91 Ram 150 v-6 voltage at the + side of coil?

[ELP]

Ive got a 91 dodge 150 v-6, it will turn over but no spark, i tested the voltage on the positve side of the coil and its not even getting one volt. I dont have a service manuel, any fuses or relays i should be checking?

[hal 67 chevelle]

i have same problem

[jpb53]

You have an ASD Relay on the left inner fender. 4 wires to it. Red which is the power at all times. Comes through a white fusible link. Dark green with a black tracer is power out of the relay. This feeds the coil;fuel pump; O2 heater and the injectors. Dark blue ( 2 wires at this position ) is the feed from the ignition switch. Dark blue with a yellow tracer is the relay controland goes to the PCM at pin #51. At key on the relay is energized for a couple of seconds; then shuts down. The relay is then re-energized by the computer when it see a signal from the distributor.

[ELP]

Thanks, ill try this tomorrow. ive replaced the ignition swich before because it would not turn, ill bet thats the problem again, this should help trouble shoot it...ill let ya know