|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Oil or Fuel on Sparkplug
|
|
09-30-2018, 02:04 PM | #1 |
New Member
4
Rep 6
Posts |
Oil or Fuel on Sparkplug
Hey guys,
So I'm experiencing some shakiness when I start my car. The sputters on start up and then drops down to low rpm and the car shakes aggressively. I'm getting misfire codes in 1-3. A month ago I pulled my sparks and ignition coil and replaced all of them. There was excessive oil in spark plug 3 and I eventually saw the crack right near the valve cover, it was leaking into the sparkplug valley. I had the valve cover and gasket replaced about a month ago as well and yesterday I've noticed oil or fuel in the third sparkplug again. I didn't smell the sparkplug which I should have I just wiped it and put it back in. Could this be an injector issue now? I have all 6 index 11 injectors. My plan is to replace the third injector but I've read that if spark plug is wet near the threads it's oil leaking and if its near the tip it's injectors. |
10-06-2018, 12:17 PM | #3 | |
Major General
1924
Rep 6,968
Posts
Drives: 2007 Black/Black 335i e90
Join Date: Apr 2011
Location: Holly, MI
|
Quote:
|
|
Appreciate
0
|
10-06-2018, 01:22 PM | #4 |
Second Lieutenant
42
Rep 238
Posts |
You'll definitely be able to smell if its fuel. Plus if you take a plug out and it dries in about an hour its fuel. If the threads are still wet, its oil
__________________
2009 Monaco Blue BMW 335 XDrive, Beyern 18s, KWv1, MHD, VRSF Full, ARM FMIC, BMS DCI, Stett CP, Forge DVs, Stage 2 LPFP, BMS OCC, (soon) M3 Rear Sway, VTT Stg 2, MMP Inlets
|
Appreciate
0
|
10-06-2018, 02:24 PM | #5 |
3455
Rep 79,211
Posts
Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com
|
|
Appreciate
0
|
10-26-2018, 07:13 AM | #6 |
ahat
1057
Rep 2,592
Posts |
Yeah, and check the coil for oil around the base. A leaking VC gasket can cause the coil to short to ground instead of discharging at the plug.
__________________
'13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos. https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8 |
Appreciate
0
|
Bookmarks |
|
|