90 accord ex no fuel,or spark

fininishing up on a burnt valve and a damaged piston on #2 cylinder. Now no fuel and spark. Wondering why because it was running before work was done. Computer only blinks once,when keyed. "check engine" light does not come on when trying to start. Could get "check engine" light to activate only by pulling "ecm" fuse on "on'. Left fuel line at rail disconected to see if fuel pump runs. Checked all fuses are ok. Engine turns over nice . Can't pull any codes. I know FI honda 's do have bad main relays go out alot, gonna try a boneyard one soon. But if anyones got a tip to help me out please let me know ..I'm thinking there could be a special procedure to follow to get fuel and spark going. Thanks for any responce.