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Old 07-19-2013, 02:49 PM
Gen1dak Gen1dak is offline
Dodge Ram Forum Senior Member
Join Date: Aug 2011
Location: MS Gulf Coast
Posts: 1,660
Gender: Male
Vehicle: 1990 RamCharger
Color: Red
Engine: 1988-1991 318ci (5.2L) LA V8 140hp
Rep Power: 4
Gen1dak will become famous soon enough

How much power in volts are you getting to the positive side of the coil input? ASD could be failing. You need to do a cranking test. You should see battery voltage at the coil, meaning at least 12.4 volts. According to the FSM, this is the case for fuel pump, fuel injectors, ignition coil, and O2 sensor heater element. The PCM provides 8 volts to the camshaft position sensor, and 5 volts to MAP and TPS. Monitor the positive lead of the coil while attempting to start for 5 seconds. Watch what the voltage indicates. It will do one of three things. It will either (1)remain near zero the whole time, (2)will be near 12 volts initially, then drop after 1-2 seconds, or (3)will remain around 12 volts the entire time. That result will determine further actions.
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