You will need to work your way back from the coil through the ICM to the PCM as well as the sensors and power needed for spark. Looks like swartllk has you on the right track. If all your fuses and power are good then we can dive deeper.if you have nothing at the coil primary then cap and rotor are not the issue.

george

All fuses are good

Had this exact issue in my 99 Blazer. Ended up fixing it eventually, after a lot of wasted money on parts. Come to find out the fuse box and particularly the lower level where the red honeycomb section where the wiring harness ties into the underside of the fuel pump relay. The power wire for the fuel pump was corroded and had burned up a little and was not making a good connection. Cleaned it up and tied it back in. Starts every time and haven’t had an issue since. This was over a year ago.

What mike said. We have an ignition problem, let’s stay focused to help the OP.

George

With key on No voltage at pink wire on coil. No voltage at ECM fuse. Crawled underneath steering column im assuming its the pink that feeds this circuit there ws nothing there either

The ECM I circuit seems to be the only one effected. Fuel pump cycles batt gauge moves but the others are dead. No gear indicator lights come on either I think I read trans is on that circuit as well. Batt has 12.1V

Check engine light never illuminates either I believe I read somewhere the OBD link is also is powered from that circuit