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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 10-28-2013, 12:34 AM   #1
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Join Date: Oct 2010
Location: sylvan lake
Posts: 7
My Ride: 2002 bmw m3
Angry Misfire in cylinder 1,3, and 5

What could be the problem. My code reader gives me this code p0303, p0305, p0301. Could it just be my spark plugs? What is the best spark plug that I can run in my 02 m3 e46
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Old 10-28-2013, 12:46 AM   #2
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Join Date: Feb 2012
Location: Upstate NY
Posts: 710
My Ride: 2000 328ci
When did it start? And when was the last time the plugs were changed out? How many miles, etc? My guess would be to start with the plugs, go with something like NGK Platinums. If it's still present, I'd say check the coils. Also, do a forum search for the codes, it should help a lot more.
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Old 10-29-2013, 04:00 AM   #3
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Join Date: Oct 2013
Location: texas
Posts: 100
My Ride: 325ci
my opinion

If it was me I would go with what your manual says to use for spark plugs they are probably going to have to order them so be prepared for the wait
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Old 11-16-2013, 12:19 AM   #4
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Join Date: Nov 2013
Location: Kissimmee Florida
Posts: 1
My Ride: 325i
I recently went to my local BMW dealer and they recommended NGK BKR6EQUP for my 02 325i.
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