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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 05-06-2012, 05:52 PM
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wilk187 wilk187 is offline
2001 740il Sport, RIP
Location: Nashville
 
Join Date: May 2008
Posts: 679
Mein Auto: 2006 750i Sport, '14 GTR
Question Slight misfire after changing plugs..thoughts?

Changed the plugs on my 750 today @ 79k miles. i ordered NGK BKR6EQUP iridiums but didn't notice i actually received the IZFR6H11. the BKxxxxx is a multiground (4 prong) plug and the IZxxxx is a single prong. The IZ is rated as an OEM replacement for the 750, but it didn't run all that great when i got it out on the highway and actually misfired once while at about 90mph.




Is anyone else running this plug? Any issues? i think i may take them out and go with the BK's that i ordered originanally. i ran them on my e38 and never had an issue.


Thanks in advance.

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Old 05-06-2012, 06:15 PM
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samadkins29 samadkins29 is offline
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Location: Bellevue, WA
 
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Mein Auto: '03 745Li
Send them back and get the right ones. Those clearly aren't working correctly. I'm running the BKR6's and love them.
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