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Old 11-15-2012, 03:23 PM
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bear-avhistory bear-avhistory is offline
2014 435M-Sport Coupe
Location: NC - USA
 
Join Date: Nov 2006
Posts: 1,994
Mein Auto: 2014 435M-Sport Coupe
Will your tune tell you what cylinder or cylinders are misfiring through a Log? Most of the time its plugs, coils, injectors or a combo. If you can read the missing cylinder swap the coil with another one not having a problem to see if the issue moves with it. If it moves its the coil if not it could be the plugs or injectors.

In the case of the 335 with a tune after about 25K miles the plugs are history.
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Kevin

2014 BMW 435M-Sport 8ZF
2013 BMW 135is 6MT conv JB4/ISO
2009 Ford Expedition 4X4 EL - 2009 V-Star
2003 Nissan Xterra 4X4 - 1998 Ford Ranger 4X4 Splash
FFR Cobra Mk-IV work in progress

Last edited by bear-avhistory; 11-15-2012 at 03:25 PM.
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