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Misfire Help Needed Please

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Old May 16, 2018 | 06:55 PM
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Joined: Sep 2011
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From: Fairborn OH
Default Misfire Help Needed Please

08 JKU 145K, Ripp GenII System no headers. DTC Codes noted. P300 & 301.
New Cats and O2 sensors installed Nov 17 due to codes. New temp sensor in Jan 18. Complete tune up Mar 18. Wires, plugs and coil. Due to codes above. Ran smooth after replacement Had what I believed to be a rattle coming from my exhaust. Found a loose clamp retightened. Rattle seemed to quiet down. Rattle happened on deceleration. Yesterday while driving to work just shy of 75 just seemed to loose power and CEL began to flash. After about 3 min problem resolved self. On way home today same issue only worse. Slowly drove rig home. Replaced Cam Position Sensor tonight and test drove. Didn't get outta my platt and misfire started again. Made it back to garage where rattle is now much worse coming from passenger side of engine. Not exhaust. Will pull plugs tomorrow on passenger side to see what they show and replace Crankshaft Position Sensor. Any additional ideas/ advice? Sorry this is so long
Thx again
Mtnbkr
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