No Fire "86" SJI Jimmy GMC 2.8L Throttle Body?

This is a pretty simple circuit if you know how to test it. As I understand what you've done and are experiecing is this. You have no spark out of the coil tower and you have no fuel injector gas spray. What you have to do is get to the primary side of the ignition coil. There will be either 3 or 4 wires to it. When the ignition is on, the pink wires will be powered up so test that. If you have 12V, check the white wire for the same 12V with just the ignition on. If you have 12V, that's normal. Just for information, I always just use a 12V test light for this. Now get your helper to crank the motor over while you are still connected into the white wire. If you see some definite light blips from the test light, you then have a coil problem. If the light does not blip or blink quickly, your problem resides in either the pick-up coil in the distributor or the ignition module it plugs into which is also inside the distributor. Most times it is the module, but if you get in there and it is covered in a green slime or a hard green coating you will need both as it is all corroded. The blip translates to the PCM as the motor speed which then grounds the injectors to fire those. Make sense?

yes there is a pickup in the distributor. that's how the module knows where the rotor is pointing. do you have spark from the coil if you remove the coil wire and have an assistant crank it over? do you have fuel spraying down the throttle body while cranking?