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Old March 29th, 2014, 10:56 PM   #1
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Idle RPM Rough

I have a 2007 Accord EX V6 6 speed with 105,000 miles! and just about 3 months ago I changed my spark plugs and a little after that, the performance in my car did not seem up to par! One noticeable thing is that the RPM's idle at around 750 whereas before it was around 500 or lower! I plugged my OBD Ii reader in tonight and found that it had found a P0305 Cylinder 5 Misfire Detected but I have not gotten a check engine light! Could it be a fowled plug? Would that cause my RPM's to be up?
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Old March 30th, 2014, 12:28 AM   #2
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# 5 spark plug or coil is giving you issues, probably backed out if you didn't use a torque wrench. The coils die all the time too.
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Old March 30th, 2014, 12:55 AM   #3
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Valve adjustment?
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