Thread: Just put jb4
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      09-15-2012, 11:10 PM   #2
Drives: 335i
Join Date: Mar 2011
Location: My car is my home

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Originally Posted by D27
It true that once I put jb4 I should change the coil and the spark plug? I have 40mile and I had jb4 for a week already and it was misfire 5,6 so I change just the coil and it run fine both coil 5,6 should I change the rest 1,2,3, and 4 and all spark plug or just wait until they go bad?
Its time to change plugs.
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