just bought a 90 civic ef hb someone put an si ecu wit a d15b2 it ran but shaky cause the upper tranny mount,the gauges were swapped no lights oon or anything i swapped out the engine for a newer used engine out a 94 civic that is clean d15b7 it runs but i have the same issue when i try an gas it it wont stay on it will sputter and go out?? i had to use the same throttle body out the old b2.. i thinkk it could be the injectors but im not to sure??maybe the fuel pump? thanks