i have a cylinder 2,3,4 misfire and a manufacters ignition control is coming up when i check the light.it is driving like crap the cel light flashes when i give gas dont have a clue wut it is

 

The flashing CEL is telling you that it is producing catalyst damaging misfires. When is the last time you changed spark plugs, plug wires, cap, rotor?

 

i replaced plugs and wires back in april wit e3 plugs and ngk wires along wit dist cap and rotor button. all this started last week i went to parts store and replaced dis cap and rotor button for free and then i picked up a new ignition coil and ignition control module none worked and i am getting 3 mpg the fuel is gong somewhere im getting ready to check oil and exhaust for gas

 

o and its a ls non vtec b18b1