94 Suburban no spark, no fuel issue

[Sim6]

So I've had this 94 Suburban for 6 months or so. its a 94' silverado, 5.7 TBI, 4L60E, 2wd. It is an unmolested truck. Since I've had it I get a check engine light on most trips 15 min of driving or longer. doesn't run bad, doesn't flash, just comes on and sometimes goes off. Last Wednesday I took a trip about an hour away pick up a motorcycle towing a small trailer (5x8) flatbed. Got home, parked. unloaded bike. started burb up backed trailer into back yard and parked it. went to start burb a few hours later. It will crank but nothing. took off air cleaner and smelled fuel. had someone crank it while I watched and nothing squirting, with or without opening the butterflies. checked the injectors and they are getting power but I don't have a noid light. The injectors function correctly when tested. gaskets were brittle so I placed all of them with a rebuild kit and put everything back together. I'm getting fuel to the TBI and the pressure tested @11 PSI. Checked for spark, and no spark either. replaced ignition module, and coil. There is power to the coil (pink wire, black connector) and it slightly dims with a test light when cranking and is at its brightest with just the key on. No spark at the coil with with 1/4"gap.

I got a OBD1 reader to try to pull codes but I guess I had already erased them disconnecting the battery so it flashed 12 as everything is normal. I searched for a crank sensor, even removing the starter but there is nothing there. I even replaced the ECU with a used one (same #) and no difference.

I haven't had any issues with my oil pressure gauge, but I feel my temp gauge reads lower than it should, about 140 most of the time. In fact seems like i remember the gauge spiking to 200 for 20 seconds on the trip home last I drove it but then returned back to its "normal" 140. It doesn't normally spike like that, it stays at 140 once its warm.

I hate to keep throwing parts at it, but thinking I should throw a coolant temp sensor? Oil pressure switch at it? Any help greatly appreciated.....