Chevrolet Camaro OBD1 Codes Code 43

Got A Code 43 On My 91 Camaro Rs,305 Tbi.it Says Electronic Spark Control.is Knock Sensor Involved In That,i Have Bad Idle,strong Gas Smell...

My Service Engine Light Has Came On. When I Pull A Code I Get 43. I Have A Haynes Manual And It Says The Code Is Electronic Spark Control. I...

Replaced Knock Sensor,still Get Check Engine Light That Comes On Under Heavy Throttle Then Runs Rough.where Is The Electronic Spark Control...

Was Wondering If You Guys Could Tell Me What A Code 43 From Manually Checking The Mil, Could Possibly Mean. The Car Is Normally Fine Until I...