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Frontier Nissan Frontier/HB/Truck Discussion Forum

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Old 10-14-2013, 10:05 AM
Bob gunn Bob gunn is offline
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2001 Frontier King Cab
2005 Frontier
Join Date: Oct 2013
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Default Frontier running rough

I've got a problem with my 3.3. New plugs, spark p wires new dist cap. It randomly drops 3 cylinders all3 on the right bank I'm getting a knock sensor code on the scanner. Anyone had this problem
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Old 10-14-2013, 03:40 PM
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NissanTech NissanTech is offline
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2004 Xterra
Join Date: Jun 2005
Location: California
Age: 48
Posts: 12,292

I recommend starting by cleaning the fuel injectors. There is a factory service bulletin for that problem: 2001 Nissan Frontier Service Bulletins - Nissanhelp.com

If the problem persist you could also have a problem with the EGR system. Excessive carbon buildup on the EGR passages could cause the EGR gases to go to just a side of the engine can causing the cylinder misfiring situation.
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Old 10-15-2013, 05:27 PM
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smj999smj smj999smj is offline
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2006 Pathfinder
2003 Frontier King Cab
2003 Frontier KC SVE 4x4
Join Date: Jun 2012
Location: Prospect, VA
Posts: 1,842

If you are loosing one bank at the same time, I would be checking the fuel injector circuits on that bank.
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