1992 Honda CX Cranks but Wont Start...has spark and fuel.

plugged the ecu in nothin the car seems like iit just wants to start like its on the verge of startin…could the gapping on my plug do this?..I don’t have my valve cover on but I have the ground cable still in raked for the cover…anymore idea could a sensor not cause it to start and which sensor? The intake manifold looks like it had a good layer of oil on the manfold throttle body and walls.
For the ground on the transmission and themostat what should I do? Take it off sruff it up? Then put it back?