Just replaced the engine in a 91 Accord. Will crank but not light. Timing is TDC, everything is plugged in. Fuses are fine. During first attempt to start there was intermittent spark but now nothing. Tried a new distributor., same. I have power to the distributor but no spark. Is there something that would prevent the distributor from sparking?

 

 

Someone correct if I am wrong here, please. But If you are getting power to the ICM and Ignitor and no spark and you swapped the dizzy with a known good one. I would think that means it is not getting switching signal from the ICM, or Crankshaft position sensor? Here is an in-depth troubleshooting process of a honda ignition system (Part 5 -How to Test the Igniter, Ignition Coil Accord, Civic, CRV, and Odyssey). I would check. If you have checked power at both the ICM (Ignitor) and Ignition coil are getting power, I would next check to see if the ignitor is feeding a signal to the coil (test 5 in the link I sent). Then onto checking the Ignitor for triggering signal. Please keep us posted.

The Eric the Car guy diagnoses is good too but this is one goes into a bit more detail. Mad respect to Eric the Car guy, I have learned so so much from his videos.