1989 honda prelude cant get to fire engine cranks but wii not fire

Sounds like the common main relay problem that plauges this generation of Hondas. These Matsuba relays are usually the problem. I am in the midst of the same issue with my CRX with a 1.5 liter transplant. Relay is located under the dash in the drivers compartment area of the vehicle. Identified as a small black box with a connector pluged into it. Will say Matsuba Rz and some serise of 4 numbers dependent on your particular relay. There are a lot of diagrams to check the relay. After detemining the type of relay you have just search Bing or Google for Matsuba (what ever seriese relay) schematic. My suggestion for a site: http://techauto.tripod.com/index.htm. Good luck!