1992 Buick Lesabre, no spark?

my first thought would be taht its the plugs themslves since you say you arent getting any codes. however its possible you did and just didnt read anything into it at the time or missed it for watever reason. the only other sensor that i can think of that will keep your car from starting (other than crank) is your cam sensor, so see if you have a code for that. also, its possible that its the wiring as oppsed to any module/component itsself. im not sure if you have a multimetre or not, if you do check the resistance on the spark pluf wires, it shouldnt be excessivley high (usully its about 10 000 ohms per foot, up to 15 id say its normal check your specs though) and clearly if nothing shows up the wire is broekn. check none of the wiring is faultygoing from your module to plug wires.