1994 honda civic si. Won't quite start almost but wont. got fire at the plugs. Fuel pressure at rail 50 psi while cranking. Used a timing light says timing is right on when cranking. There is compression I don't know how much my gauge says 0 but it will blow my hand off the plug hole very easily. Changed entire distributor assembly no difference. Strange buzzing noise coming from motor changes pitch when the throttle is opened or closed with motor not moving other than having the key on. The resistance on the tps changes as the throttle is moved. what next?

 

"got fire at plugs" is diagnostically useless. What color is the spark? 50 PSI is too high. Are you using an adjustable FPR or aftermarket fuel pump? Get a compression gauge that actually works, and tell us what your compression is in each cylinder.

 

Also check the mechanical timing on the cam and crank.