Is there supposed to be fire from ecu to distributor on a 1988 Toyota 3.0 v6?

Yes, on a 1988 Toyota 3.0 V6, there should be a spark generated from the ignition system that travels from the ignition coil to the distributor and then to the spark plugs. This process involves electrical current creating a spark, which ignites the air-fuel mixture in the engine's cylinders. If you're not seeing any fire or spark, it could indicate an issue with the ignition coil, distributor cap, rotor, or wiring in the ignition system.