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Message: <blockquote data-quote="framda" data-source="post: 922378" data-attributes="member: 16062"><p>Start with the cap and rotor, try the plug wires if that doesn't fix it. You can try to get somebody (that you trust) to powerbrake it at night. Sometimes you can see the plug wires arcing to ground, that will tell you right away if it happens. Did you check for hard or soft codes while it was doing it? You can also try the cylinder balance test that the EEEC IV system will do with the onboard computer. Check out the sticky on pulling codes without a scanner, or use a scanner if you have one. Another trick that we did on race cars is to check the temperature of the exhaust header right were the hot gas comes out of the head. Use a digital pyrometer. Not every one has one but if you have a friend in the heating and air business maybe they could lend you one, they use them to. When you find the cylinder that is colder, that is the one missing. Good luck.</p></blockquote><p></p>