Lights on and no go

i have a 92 chev lumina,i got into tha car one day drove fine,nothing out of tha ordinary,but tha next day my wife got into the car and tried to start it.All

tht happened was click at tha starter,i changed tha batt and starter,still same thing click,now one time it clicked and smoke came out from under tha multi port injection, all tha lights come on and but got out wen i try to start,plz help me narrow it down cose im stuped.I have checked all tha fuses and wires tht i can and all seem to b fine. Ty for ya time and any info u can provide,

92 and multiport? got to get better than that.