Codes after downpipe

Grand_hustle17 · 10-06-2015, 09:03 PM

So after installing downpipes within less than 40 miles driven i got a few codes... I was actually on my way to get e85 (3 gal) to get a test run vs a friends modded ISF when the SES came up.. I still continued to get the e85 because i was less than a mile away.. Anyways after the e85 the car sputters a bit more, pretty much drove home limp mode... Car isnt daily driven and i pulled codes tonight

2AAF- Fuel pump
29F4- cat converter conversion
29F5- Cat converter conversion 2
29cf - misfire cyl 3
2c77- lambda probe behind cat converter signal

Car is 07 with 90k miles... Mods areas listed
Dual conefilters
BMS downpipes
AR charge pipe/ tial BOV
JB4

Used JB4 to pull codes, misfire i kind of suspected, had a thread about a very small minor sputter i would get ever so random at idle andwas told thats normal for this car, injectors were changed by dealer before so im chalking that up to coil pack or plugs... Now as far as the fuel pump could the other codes have triggered that?.. I actually think the pump was changed before when prev owner had car.. Thoughts?.. Downpipes need foulers??

PNWN54 · 10-06-2015, 09:15 PM

How old are the plugs? If more than 10k, swap them. If that doesn't help, replace the coil packs. But I would log your car before going anywhere past those parts. In fact, do that first to see what's happening.

Grand_hustle17 · 10-06-2015, 09:18 PM

Cant drive lol... Limp mode.. I have pre logs... Also dont know wtf is wrong with my pc cant connect via usb (stupid laptop fault)... Used dash to read codes..

cwarren · 10-06-2015, 10:31 PM

o2's swapped

Grand_hustle17 · 10-06-2015, 10:47 PM

Front o2 and cyl 123 injectors changed at dealer

Grand_hustle17 · 10-07-2015, 07:07 PM

Changed coil 3 today, still misfires... Ordered plugs. OEM bosch plugs, i think im going to order the NGK for the future as well

mikewills · 10-07-2015, 07:38 PM

I also noticed a 29F4 and 29F5 code several days after catless DP install. From what I've read, they are common with catless DPs and do not affect performance at all.....just keep clearing them. Have you heard the same??

Gizm0 · 10-08-2015, 06:54 PM

You put your front bank O2 sensor on the front bank and vice versa...

Grand_hustle17 · 10-08-2015, 08:34 PM

????... Should i?.. Guys that installed it are bmw pros.. Infact they had about 4 bmws in the shop.. E90's and a E60 M5... In fact they had a F10 M5 as well... They are well verse with this platform. In fact the mech owns a N54... So i would assume they did what needed to be done... Has anyone used anti foulers?

mojobmw_e90 · 10-08-2015, 08:37 PM

Turn on auto clear and those cat codes will disappear. Change plugs and if u go with ngk gap at 0.022

Grand_hustle17 · 10-08-2015, 10:36 PM

Im going to give OEM 1 more shot n keep a set of NGK as well

cwarren · 10-08-2015, 11:18 PM

everyone makes mistakes

just check and make sure they are not swapped
Then you can rule it out .

Gizm0 · 10-09-2015, 12:45 AM

Did you use to be on maxima forums? Your name looks familiar

Grand_hustle17 · 10-09-2015, 06:34 AM

Yes lol.. I think you are the 3rd person from there who noticed lol

Grand_hustle17 · 10-09-2015, 06:36 AM

Quote:

Originally Posted by mojobmw_e90

Turn on auto clear and those cat codes will disappear. Change plugs and if u go with ngk gap at 0.022

I rather not because then i wouldnt know whats going on with the car.

mojobmw_e90 · 10-09-2015, 07:28 AM

Quote:

Originally Posted by Grand_hustle17

I rather not because then i wouldnt know whats going on with the car.

I thought so to till I asked terry. The autoclear only disables cat codes due to no cats, everything else is still functional and will pop cel and light if anything goes wrong

Gizm0 · 10-09-2015, 05:24 PM

Quote:

Originally Posted by Grand_hustle17

Yes lol.. I think you are the 3rd person from there who noticed lol

Seems like lots of 5.5gen people moved on to the N54 platform...

Grand_hustle17 · 10-09-2015, 05:35 PM

Quote:

Originally Posted by mojobmw_e90

I thought so to till I asked terry. The autoclear only disables cat codes due to no cats, everything else is still functional and will pop cel and light if anything goes wrong

Oooo!!! Well then lol.. How does one do this??

Grand_hustle17 · 10-09-2015, 05:36 PM

Quote:

Originally Posted by Gizm0

Seems like lots of 5.5gen people moved on to the N54 platform...

Had a pretty quick acura TL... Just wanted faster so i chose the N54... Lot less reliable but i drive a civic daily lol

mojobmw_e90 · 10-10-2015, 07:09 PM

Quote:

Originally Posted by Grand_hustle17

Oooo!!! Well then lol.. How does one do this??

Mph 1 rpm 3

10-06-2015, 09:03 PM	#1
Grand_hustle17 Major 192 Rep 1,173 Posts Drives: E90 335i Join Date: Aug 2015 Location: Maryland iTrader: (0)	Codes after downpipe So after installing downpipes within less than 40 miles driven i got a few codes... I was actually on my way to get e85 (3 gal) to get a test run vs a friends modded ISF when the SES came up.. I still continued to get the e85 because i was less than a mile away.. Anyways after the e85 the car sputters a bit more, pretty much drove home limp mode... Car isnt daily driven and i pulled codes tonight 2AAF- Fuel pump 29F4- cat converter conversion 29F5- Cat converter conversion 2 29cf - misfire cyl 3 2c77- lambda probe behind cat converter signal Car is 07 with 90k miles... Mods areas listed Dual conefilters BMS downpipes AR charge pipe/ tial BOV JB4 Used JB4 to pull codes, misfire i kind of suspected, had a thread about a very small minor sputter i would get ever so random at idle andwas told thats normal for this car, injectors were changed by dealer before so im chalking that up to coil pack or plugs... Now as far as the fuel pump could the other codes have triggered that?.. I actually think the pump was changed before when prev owner had car.. Thoughts?.. Downpipes need foulers?? __________________ 02 A33 6mt maxima- sold (toy) 04 UA6 Acura TL- sold (my reliable baby) 07 N54 335i- the new adventure (i think) Last edited by Grand_hustle17; 10-06-2015 at 09:27 PM..
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10-06-2015, 09:15 PM	#2
PNWN54 MR. Rocket 46 Rep 398 Posts Drives: 2010 E92 335i M-Sport Join Date: May 2013 Location: Portland, OR iTrader: (2) Garage List 2010 E92 BMW 335i [0.00]	How old are the plugs? If more than 10k, swap them. If that doesn't help, replace the coil packs. But I would log your car before going anywhere past those parts. In fact, do that first to see what's happening.
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10-06-2015, 09:18 PM	#3
Grand_hustle17 Major 192 Rep 1,173 Posts Drives: E90 335i Join Date: Aug 2015 Location: Maryland iTrader: (0)	Cant drive lol... Limp mode.. I have pre logs... Also dont know wtf is wrong with my pc cant connect via usb (stupid laptop fault)... Used dash to read codes..
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10-06-2015, 10:31 PM	#4
cwarren Captain 82 Rep 725 Posts Drives: 08 e92 Join Date: Jan 2012 Location: portland iTrader: (1)	o2's swapped __________________ ptf MHD E85 /Hexon rr550 turbo's/PRE custom intakes/CP / bms dp's/hfs4 / er fmic/PSS/spec stage 2+/kwv2/steveAZ stage 3 lpfp /m3 control arms/powerflex black/MF LSD /fuel it port injection
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10-06-2015, 10:47 PM	#5
Grand_hustle17 Major 192 Rep 1,173 Posts Drives: E90 335i Join Date: Aug 2015 Location: Maryland iTrader: (0)	Front o2 and cyl 123 injectors changed at dealer
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10-07-2015, 07:07 PM	#6
Grand_hustle17 Major 192 Rep 1,173 Posts Drives: E90 335i Join Date: Aug 2015 Location: Maryland iTrader: (0)	Changed coil 3 today, still misfires... Ordered plugs. OEM bosch plugs, i think im going to order the NGK for the future as well
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10-07-2015, 07:38 PM	#7
mikewills Captain 66 Rep 971 Posts Drives: Ducati Hypermotard Join Date: Jul 2011 Location: DMV iTrader: (2) Garage List 2008 Duc 848 [0.00]	I also noticed a 29F4 and 29F5 code several days after catless DP install. From what I've read, they are common with catless DPs and do not affect performance at all.....just keep clearing them. Have you heard the same?? __________________ BMWCCA #454364
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10-08-2015, 06:54 PM	#8
Gizm0 Colonel 428 Rep 2,136 Posts Drives: 08 e92 335i 6mt Join Date: Jan 2013 Location: Virginia iTrader: (1)	You put your front bank O2 sensor on the front bank and vice versa...
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10-08-2015, 08:34 PM	#9
Grand_hustle17 Major 192 Rep 1,173 Posts Drives: E90 335i Join Date: Aug 2015 Location: Maryland iTrader: (0)	????... Should i?.. Guys that installed it are bmw pros.. Infact they had about 4 bmws in the shop.. E90's and a E60 M5... In fact they had a F10 M5 as well... They are well verse with this platform. In fact the mech owns a N54... So i would assume they did what needed to be done... Has anyone used anti foulers?
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10-08-2015, 08:37 PM	#10
mojobmw_e90 Major 380 Rep 1,497 Posts Drives: 2014 E63S Join Date: Oct 2014 Location: Chicago IL iTrader: (3)	Turn on auto clear and those cat codes will disappear. Change plugs and if u go with ngk gap at 0.022
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10-08-2015, 10:36 PM	#11
Grand_hustle17 Major 192 Rep 1,173 Posts Drives: E90 335i Join Date: Aug 2015 Location: Maryland iTrader: (0)	Im going to give OEM 1 more shot n keep a set of NGK as well
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10-08-2015, 11:18 PM	#12
cwarren Captain 82 Rep 725 Posts Drives: 08 e92 Join Date: Jan 2012 Location: portland iTrader: (1)	everyone makes mistakes just check and make sure they are not swapped Then you can rule it out . __________________ ptf MHD E85 /Hexon rr550 turbo's/PRE custom intakes/CP / bms dp's/hfs4 / er fmic/PSS/spec stage 2+/kwv2/steveAZ stage 3 lpfp /m3 control arms/powerflex black/MF LSD /fuel it port injection
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10-09-2015, 12:45 AM	#13
Gizm0 Colonel 428 Rep 2,136 Posts Drives: 08 e92 335i 6mt Join Date: Jan 2013 Location: Virginia iTrader: (1)	Did you use to be on maxima forums? Your name looks familiar
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10-09-2015, 06:34 AM	#14
Grand_hustle17 Major 192 Rep 1,173 Posts Drives: E90 335i Join Date: Aug 2015 Location: Maryland iTrader: (0)	Yes lol.. I think you are the 3rd person from there who noticed lol
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