I posted this on the TBI forum but wanted to get it out here as well to see if anyone can point me in the right direction.

This isn't third gen related but could be pertinent to someone having a similar problem. I searched but couldn't find anything helpful. I have a 1990 GMC 1500 with 350 TBI motor. I drove it to lunch Friday and when returning from lunch it started and moved about a foot then died. It was low on gas but not empty, but to be sure I put more gas in it and it still didn't start. I went backed today and checked and it's not getting power to the coil and the injectors are not firing - I don't see any gas going into the TBI as the motor cranks. The fuel pump is working. I pulled the connectors off the coil and checked for voltage there, nothing, so I pulled the connector off the distributor and checked and it did not have 12 volts at any of the four terminals on that connector; I only saw ~.8v on one terminal and nothing on the others. I suspected the ignition module but once I found there was no power to the distributor I figured the problem might be upstream from there. I pulled fuses out of the fuse panel and all were good. Is there another fuse or relay that would prevent the distributor from getting power? Should there be 12v at the distributor connector? Thanks for any help.