|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Just installed downpipes, rough idle questions
|
|
10-08-2012, 06:02 PM | #1 |
Chump
145
Rep 283
Posts
Drives: '16 LBB M2/'18 X3 M40i/'16 X5d
Join Date: Sep 2012
Location: Lower Alabama...for now.
|
Just installed downpipes, rough idle questions
I just installed catless downpipes. Easy install, but now I am having some issues with an incredibly rough idle. The car sputters and pops. I have a jb3 tune on it and when given gas the car smooths out and sounds nice. Any suggestions as how to fix this? The car sounds like its choking, obviously not getting enough fuel but how do I adjust that at idle?
On another note, has anyone ever replaced a turbo waste gate? |
10-08-2012, 09:11 PM | #2 |
Lieutenant
71
Rep 511
Posts |
Did you reverse your o2 sensors? Sounds like you might have..
__________________
'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
|
10-08-2012, 11:11 PM | #4 |
Colonel
71
Rep 2,626
Posts |
yup, definitely you reversed the o2 sensors.
PM if you want a JB4 with the G5 board and NLS/2step. You can get the Isolated boost control firmware as well (I'm trying to help a friend sell his).
__________________
'18 F80 M3 Comp 6MT - Stock
'07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P | '10 E92 335i M, 6MT | '07 E90 335i, PTF COBB E50, FBO, HFS4 |
Appreciate
0
|
10-09-2012, 09:16 AM | #7 | |
Banned
30
Rep 457
Posts |
Quote:
|
|
Appreciate
0
|
10-09-2012, 09:23 AM | #8 |
Some dude
92
Rep 1,780
Posts |
The wire lengths are different - bank 2 (grey) is much shorter than bank 1 (black). Best to just unscrew them from the incorrect DP and reinstall properly.
__________________
RRT
E92 335i/6MT with stuff and things |
Appreciate
0
|
10-09-2012, 09:38 AM | #9 |
Lieutenant
32
Rep 520
Posts |
OP if your sensors are not swapped then you have the same issue as me.... no codes sensors in the correct spot just a rough idle no one knows how to fix
__________________
KW V3's / AA Stage 2 Supercharger / Catless Mid-pipes / AA Mufflers / Apex Arc-8's / PFC 09's |
Appreciate
0
|
10-09-2012, 09:49 AM | #10 | |
Captain
149
Rep 966
Posts
Drives: e92 m3
Join Date: Feb 2011
Location: staten island ny
|
Quote:
__________________
e92 m3 dct
gintani stage 2+ full ethanol custom pulley and meth kw clubsport,ap racing radical,volk te37sl,akrapovic rear,recaro profi xl,voltphreaks battery |
|
Appreciate
0
|
10-09-2012, 10:46 AM | #13 |
dat boost doe
241
Rep 1,825
Posts |
damaged o2 sensors, check with ecstuning they sell replacements.
__________________
|
Appreciate
0
|
10-09-2012, 10:51 AM | #14 |
Colonel
71
Rep 2,626
Posts |
ECStuning or tischer BMW. I usually check them both.
__________________
'18 F80 M3 Comp 6MT - Stock
'07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P | '10 E92 335i M, 6MT | '07 E90 335i, PTF COBB E50, FBO, HFS4 |
Appreciate
0
|
10-09-2012, 11:11 AM | #16 |
dat boost doe
241
Rep 1,825
Posts |
so if its not switched 02 sensors, and theres no code, what gives?
__________________
|
Appreciate
0
|
10-09-2012, 11:26 AM | #17 |
Some dude
92
Rep 1,780
Posts |
Age, heat, "wear"? Could just be crappy and old.
You can use two bank one sensors - Bosch # 17098, available from many places online. The rear bank sensor, 17102 is much more expensive and harder to find. http://www.e90post.com/forums/showthread.php?t=726481
__________________
RRT
E92 335i/6MT with stuff and things |
Appreciate
0
|
10-09-2012, 01:02 PM | #18 |
Chump
145
Rep 283
Posts
Drives: '16 LBB M2/'18 X3 M40i/'16 X5d
Join Date: Sep 2012
Location: Lower Alabama...for now.
|
|
Appreciate
0
|
10-10-2012, 08:37 AM | #19 |
Lieutenant
32
Rep 520
Posts |
probably 6 months
__________________
KW V3's / AA Stage 2 Supercharger / Catless Mid-pipes / AA Mufflers / Apex Arc-8's / PFC 09's |
Appreciate
0
|
10-10-2012, 08:41 PM | #20 |
Chump
145
Rep 283
Posts
Drives: '16 LBB M2/'18 X3 M40i/'16 X5d
Join Date: Sep 2012
Location: Lower Alabama...for now.
|
I coded it out today, and it said bank one o2 sensor incorrect. Same for bank 2. So you guys were right. Thank you for all the help now the car is running like a champ!
|
Appreciate
0
|
Bookmarks |
|
|