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2nd Generation
Off and on engine miss
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<blockquote data-quote="ArkLightning" data-source="post: 16064680" data-attributes="member: 162117"><p>I replaced the plugs about 2007 or 2008 when I put the 4lb pulley and tune on (would have to check my log to be exact). I've only put about 5,000 miles on it since then. About 4 years ago (around 2014) I developed a miss when I opened the throttle up and a replacement of the fuel filter fixed that. That miss usually manifested itself when the throttle was opened up. </p><p></p><p>This miss started about 4 months ago and is similar to when the fuel filter was acting up - but not exactly. This time it occasionally misses at idle or just off idle. That is kind of unusual for a fuel supply issue as a fuel supply issue usually will act up when the throttle is opened and increasing fuel demand. Of course high pressure fuel pumps, fuel rails and fuel returns/circulation sort of cloud that theory. </p><p></p><p>In my experiences with my old muscle cars, a miss under light engine load or idle is usually a bad plug wire - no wires here but I thought maybe a bad cop behaves in a similar fashion. Apparently not in this case but as you point out it might be a plug or plugs.</p></blockquote><p></p>
[QUOTE="ArkLightning, post: 16064680, member: 162117"] I replaced the plugs about 2007 or 2008 when I put the 4lb pulley and tune on (would have to check my log to be exact). I've only put about 5,000 miles on it since then. About 4 years ago (around 2014) I developed a miss when I opened the throttle up and a replacement of the fuel filter fixed that. That miss usually manifested itself when the throttle was opened up. This miss started about 4 months ago and is similar to when the fuel filter was acting up - but not exactly. This time it occasionally misses at idle or just off idle. That is kind of unusual for a fuel supply issue as a fuel supply issue usually will act up when the throttle is opened and increasing fuel demand. Of course high pressure fuel pumps, fuel rails and fuel returns/circulation sort of cloud that theory. In my experiences with my old muscle cars, a miss under light engine load or idle is usually a bad plug wire - no wires here but I thought maybe a bad cop behaves in a similar fashion. Apparently not in this case but as you point out it might be a plug or plugs. [/QUOTE]
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Off and on engine miss
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