Spark plug oddness (E91) - Dorkiphus.net
Navigation » Dorkiphus.net > Technical & Track Disussions > BMW Technical Discussions » Spark plug oddness (E91)

BMW Technical Discussions BMW related technical discussions and questions go here.

Reply
 
Thread Tools Display Modes
  #1  
Old 11-21-2017, 12:42 AM
Uncle ENzo's Avatar
Uncle ENzo Uncle ENzo is offline
 
Join Date: Oct 2013
Location: Baldwin, MD
Posts: 568
Uncle ENzo
Default Spark plug oddness (E91)

So my pal drives down from NYC for me to do a little tune up on his E91. Nothing special. Brakes, belts and tune up. So everything is humming along until I put in the Bosch Double Platinum plugs. I put in those along with fresh OEM coils and the sob wont run yet alone even start. So after swapping back in the old coils, I realize the issue is with the plugs.

Gap was fine and there was no reason I could find why it wouldnt run. I ended up tossing in some NGKs and it was fine. Ive never had this happen with plugs. I could see a rough run or some burping, but no start???
__________________
Vincent
1976 911S
Mazda "Scrotege5" -RIP
Acura MDX-wife
2009 E91 Touring
Reply With Quote
  #2  
Old 11-21-2017, 11:49 PM
HughA44s HughA44s is offline
 
Join Date: Aug 2014
Location: Woodbridge, VA
Posts: 493
HughA44s has one HoF thread
Default

Well that is a new one on me. I think I have always used NGKs.
Reply With Quote
  #3  
Old 12-11-2017, 07:57 PM
Mark Hubley's Avatar
Mark Hubley Mark Hubley is offline
 
Join Date: Oct 2010
Location: Lothian, MD
Posts: 591
Mark Hubley
Default

FWIW, I just swapped plugs on my new-to-me E90 325i with 110k mikes. I put in NGK Laser Iridium plugs (checked the gaps at 0.040, they were all there out of the box), and the car runs great.
__________________
2000 Carrera (flat six)
2006 325i (inline six)
2005 Tacoma (V6)

Formerly owned P-cars:
1987 924S
1999 Boxster
1986 944
Reply With Quote
  #4  
Old 12-15-2017, 08:37 PM
scott's Avatar
scott scott is offline
 
Join Date: Apr 2003
Location: Sykesville, MD
Posts: 680
scott
Default hmmm

i would be suspect of an intermittent 12v supply connection on the coil...
__________________
Scott

1982 SC
1991 Vanagon wrx
1962 Beetle
2001 MR2 Spyder
2005 Scion XB
2006 Audi a4
Reply With Quote
  #5  
Old 12-16-2017, 09:31 PM
Clarke's Avatar
Clarke Clarke is offline
 
Join Date: Feb 2007
Location: Western Prince William
Posts: 1,023
Clarke
Default

NGK are the only plugs to run in a BMW in my opinion.
__________________
Searchin' for my lost shaker of salt.

Clarke

'79 SC Euro
'93 BMW 325is
'54 Chevy 210
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump