|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
If it's not one thing it's another...
|
|
12-14-2014, 08:50 PM | #1 |
Captain
63
Rep 605
Posts |
If it's not one thing it's another...
What's going on everybody? Well to make a long story short, I finally got my second set of VTT stage 2s installed today, after that first set had a mechanical defect. Anyways the install went pretty smoothly for the most part. After everything was put back together I started the car up. Once I started the car, it started misfiring on cylinders 1,2,and 3. I'm not sure how the hell that happened especially, since a turbo install has nothing to do with anything electrical. On a side note, my car was sitting in one spot for the last two months, so I'm not sure if that has anything to do with it or not. Lastly, I did install the RB PCV valve, BMS cowl filters and sport oil cooler valve so I'm quite sure that has nothing to do with anything. All I'm trying to do is drive home for the holidays, this upcoming week, but by the way this thing acts I'm actually scared to make the journey. Any suggestions?
__________________
F90 M5 Comp/ FI Exhaust, MAD pdownpipes / PG Intakes/ H&R Springs/ AG wheels
E85 Z4M |
12-14-2014, 08:54 PM | #2 |
Lieutenant
71
Rep 510
Posts |
Have you tried swapping coils to see if the misfire follows? I would also recommend the one step colder plugs now since you are outputting more horsepower than you were prior to the turbo upgrade. Reset adaptations also, if you haven't already.
__________________
'2018 F87 M2 LCI | LBB | GC Camber Plates | Ohlins R&T 90/190N/mm | 18x10 et33 square 275/35 | MPe | Poly Transmission Mounts | Recaro Sportster CS
|
Appreciate
0
|
12-14-2014, 09:36 PM | #3 |
Lieutenant
58
Rep 494
Posts |
Could be many things, but start with spark plugs and coils. When tuned spark plugs and coils don't last too much (when was the last time you did plugs or coils?). If car is still running like crap when cold, but good when warm, then next are the injectors.
|
Appreciate
0
|
12-14-2014, 09:43 PM | #4 |
Macgyver
207
Rep 942
Posts |
Could the O2 sensors being backwards cause a cylinder "disruption " or faux misfire? Or maybe one O2 connector plug not being completely seated. Maybe the battery is really low and discharged from sitting and needs a deep cycle charge.
__________________
GTX3076R , ADV, JB4, FMIC, BOV, 17"APEX, 255/40/17 SQ, 6-SPD Manual
|
Appreciate
0
|
12-15-2014, 09:57 AM | #6 |
underground
63
Rep 331
Posts
Drives: alpine white 335 E92
Join Date: Aug 2013
Location: central Jersey
|
Try swapping that VTT turbo out for a RB turbo, bet the misfires stop.
__________________
|
Appreciate
0
|
12-15-2014, 09:57 AM | #7 |
Banned
134
Rep 1,202
Posts |
Best way to never mix up your O2 wires is just remember the phrase "black is not back". Black for the front turbo, grey for the rear. My guess is also that you mixed them up.
|
Appreciate
0
|
12-15-2014, 12:55 PM | #8 |
Major
162
Rep 1,264
Posts |
I'm with everyone else, sounds like O2 sensors.
__________________
2010|335i|LMB|E92|6MT|MSport|Logic7|335is Clutch|AE Performance|BMS|Walbro|VRSF 7"| 149.7mph NFZ AZ 1/2mi
1992|Pontiac Firebird|Mild 355ci|T56| -I will look on your treasures, gypsy. Is this understood?- |
Appreciate
0
|
12-15-2014, 12:56 PM | #9 |
3441
Rep 79,212
Posts
Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com
|
First thing that came to mind was battery since the car has been sitting for a while but definitely double check the o2's as that would cause a lot of problems.
|
Appreciate
0
|
12-15-2014, 08:29 PM | #10 |
Captain
63
Rep 605
Posts |
I just pulled all of the codes and this is what popped up:
29CD Misfiring, cylinder 1 29CF Misfiring, cylinder 3 29CE Misfiring, cylinder 2 29D9 Misfirings in case of tank filling level too low. 2C24 Lambda proben in front of catalytic converter, muddled 0000 Unknown Fault So many codes...so many problems . I hope it is an easy o2 sensor swap and nothing else. This sh**s getting ridiculous.
__________________
F90 M5 Comp/ FI Exhaust, MAD pdownpipes / PG Intakes/ H&R Springs/ AG wheels
E85 Z4M |
Appreciate
0
|
12-15-2014, 08:45 PM | #11 | |
Brigadier General
561
Rep 3,625
Posts |
Quote:
|
|
Appreciate
0
|
12-15-2014, 08:51 PM | #12 |
Out Boosting...
242
Rep 3,987
Posts |
LOWWW blow!!
__________________
Alpine White M-Sport F30
|
Appreciate
0
|
12-15-2014, 10:06 PM | #13 | |
Major
161
Rep 1,254
Posts |
Quote:
Same thing happened to me, its a easy enough mistake to make.
__________________
08 AW 6MT | MHD | Wavetrac LSD 3.46 | AE Quad | VRSF DP'S | VRSF 7" IC | DD Hood / Diffuser| Mtech Front / Rear| BMW Performance Splitters / Spoiler | Wheels 18lb 18x9 SQ | Hexon RR550 | TFT Inlets |
|
Appreciate
0
|
12-16-2014, 09:53 AM | #15 |
Private First Class
35
Rep 169
Posts |
I also second the O2 sensors, had the same thing happen recently. Forgot to label them... they are labeled now
__________________
IG @pobudz | '08 e92 335i - MOTIV 750 w/ PI & AEMMHD tuned, tial bov, ER cp, ADE "800HP" fmic, Corsa 3.5" catback, m3 suspension bits (F&R sway, F&R control arms), rogue toe arms, MOTIV motor mounts, UUC trans mounts and RTD shifter. H&R sports and Koni's, 17x9/17x10.5 Forgestar F14 w/ Mickeys. Quaife 3.08 LSD, M3 subframe and diff bushings. MOTIV Twin disk. Fuel-IT Stage 3+.
|
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|