replace the ignition module and be down with it.
Also guys one thing to remember that when a engine miss fires it blows raw fuel out into the headers where it then get ignited by the next cylinder's exhaust when it does this it burn up the fuel and the oxygen aswell making the o2 sensor think it's running lean and then the ecm compensates for it by adding more fuel.
Also guys one thing to remember that when a engine miss fires it blows raw fuel out into the headers where it then get ignited by the next cylinder's exhaust when it does this it burn up the fuel and the oxygen aswell making the o2 sensor think it's running lean and then the ecm compensates for it by adding more fuel.