Hi tdgast. Welcome to the forum. I don't have a service manual so I'll try to do this from memory. You should have an automatic shutdown (ASD) relay. The first step is to determine if that is turning on. By '93, this was a Chrysler product and I think they were using the standard, fairly reliable circuit. You can measure the voltage feeding the ignition coil, (typically dark green with an orange stripe), the injectors, or one of the small terminals on the back of the alternator. Both small terminals on the alternator will have voltage at the same time, one will just be a little lower).
You should find full battery voltage on those places two times. The first is for just one second after turning on the ignition switch, then it will go back to 0 volts. The voltage will turn on again during engine rotation, (cranking or running). That voltage comes from the ASD relay which is turned on by the Engine Computer when it gets pulses from the two sensors you replaced.
As an alternative to measuring the voltage, you can pop the cover off the ASD relay and watch to see if it clicks when a helper cranks the engine.
When you replaced the crankshaft position sensor, was it new, and did it have a paper spacer or plastic rib on the end? One of them must be present to properly set the air gap. If there was no spacer, the sensor can be broken from hitting the ring on the flex plate or it won't generate a sufficient signal if it is too far away.
Monday, September 6th, 2010 AT 6:55 PM