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2nd Generation
Off and on engine miss
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<blockquote data-quote="FireGuy" data-source="post: 16064506" data-attributes="member: 4653"><p>In your original post you stated that you had changed plugs around 12k, and shortly thereafter you have a slight miss. My guess is that you opted for cheap plugs, as you stated is your mantra, "cheap and easy". My thinking is that your miss is either fuel mixture or a spark issue, with cops being eliminated from the equation. Since spark plugs are less expensive than cops, I am surprised you didn't pull them and add a fresh set. I have found two things to be true. One is that even new plugs can miss and in fact will miss under load more often than thought. Secondly, running any cleaner through the fuel system of a performance vehicle especially would mandate a fuel filter and plug change as these types of additives add deposits on the plug tips. </p><p>Take what you will from this but know that what I am telling you has been experienced by me firsthand.</p><p></p><p>One other item that could be causing slight miss issues is the DPFE on the driver's side. It has vacuum hoses and an electrical plug on it. If it is aluminum, you should replaced it with the revised plastic one. Look for that valve on Rock auto and you can see what it looks like.</p><p></p><p>I hope that any of this is helpful and you get this resolved. i</p><p></p><p>BTW, I don't claim to be the smartest guy or a Lightning guru but I am trying to help</p></blockquote><p></p>
[QUOTE="FireGuy, post: 16064506, member: 4653"] In your original post you stated that you had changed plugs around 12k, and shortly thereafter you have a slight miss. My guess is that you opted for cheap plugs, as you stated is your mantra, "cheap and easy". My thinking is that your miss is either fuel mixture or a spark issue, with cops being eliminated from the equation. Since spark plugs are less expensive than cops, I am surprised you didn't pull them and add a fresh set. I have found two things to be true. One is that even new plugs can miss and in fact will miss under load more often than thought. Secondly, running any cleaner through the fuel system of a performance vehicle especially would mandate a fuel filter and plug change as these types of additives add deposits on the plug tips. Take what you will from this but know that what I am telling you has been experienced by me firsthand. One other item that could be causing slight miss issues is the DPFE on the driver's side. It has vacuum hoses and an electrical plug on it. If it is aluminum, you should replaced it with the revised plastic one. Look for that valve on Rock auto and you can see what it looks like. I hope that any of this is helpful and you get this resolved. i BTW, I don't claim to be the smartest guy or a Lightning guru but I am trying to help [/QUOTE]
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Off and on engine miss
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