Error Codes need advice

GEOS07335i · 03-04-2018, 12:13 PM

Hey guys,
Just wondering if anyone can tell me what they think is going on. I have a 2008 335i with 124K

I recently got the following error code. Then I went out and captured some datalogs but not sure if I captured the right info. Could someone take a quick look and tell me what you think.

I used Torque GooglePlay App to log the data. I have INPA but not sure how to datalog.

I'm assuming this is telling me my catalytic converters are bad. I did recently change my O2 sensors like a week ago.

Bavarian Tech · 03-04-2018, 05:24 PM

Which o2 did you change ? Upstream or downstream

GEOS07335i · 03-05-2018, 06:30 AM

Quote:

Originally Posted by Bavarian Tech

Which o2 did you change ? Upstream or downstream

I changed both precat O2 sensors. Are those considered upstream?

Nexus313 · 03-05-2018, 11:44 AM

Answered your question in previous post. Your cats are cooked from misfiring too and running rich too long. Replace or get catless dps.

imohammed216 · 03-10-2018, 12:49 PM

Replace or get catless dps

GEOS07335i · 03-10-2018, 02:33 PM

Well I ordered ARM catless DP's yesterday and since I was going there I also ordered an ARM 7" FMIC,DCI, and charge pipe. I still spent less than replacing one new cat lol. I'm going to do two DYNO runs one before and after see how much power this POS can make.

Nexus313 · 03-12-2018, 12:36 PM

Let me know if your rough idle gets better with new downpipe!

GEOS07335i · 03-26-2018, 09:00 AM

Quote:

Originally Posted by Nexus313

Let me know if your rough idle gets better with new downpipe!

Downpipes went on two weekends ago. Rough Idle went away when I replaced the precat o2 sensors. I dont think the DP's had anything to do with the rough idle. I was getting codes related to cat's being less efficient hence why I changed to catless DP's. I do see the shadow codes in MHD related to cats but the car is running very smooth now.

Nexus313 · 03-27-2018, 09:15 AM

Quote:

Originally Posted by GEOS07335i

Downpipes went on two weekends ago. Rough Idle went away when I replaced the precat o2 sensors. I dont think the DP's had anything to do with the rough idle. I was getting codes related to cat's being less efficient hence why I changed to catless DP's. I do see the shadow codes in MHD related to cats but the car is running very smooth now.

Hmm I still have rough idle .. and cat codes.. still on stock dp. I think I'll get intake valves cleaning done soon.

03-04-2018, 05:24 PM	#2
Bavarian Tech Major 267 Rep 1,203 Posts Drives: 335i Join Date: Jan 2007 Location: Pittsburgh/Harrisburg iTrader: (15) Garage List 2006 330i [10.00]	Which o2 did you change ? Upstream or downstream
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03-05-2018, 11:44 AM	#4
Nexus313 Lieutenant 108 Rep 473 Posts Drives: 2016 BMW 340i 6MT Join Date: Aug 2015 Location: Toronto iTrader: (0)	Answered your question in previous post. Your cats are cooked from misfiring too and running rich too long. Replace or get catless dps.
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03-10-2018, 12:49 PM	#5
imohammed216 Registered 0 Rep 1 Posts Drives: BMW 328I 2008 - E90 Join Date: Mar 2018 Location: Austin iTrader: (0)	Replace or get catless dps
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03-10-2018, 02:33 PM	#6
GEOS07335i Lieutenant 162 Rep 513 Posts Drives: 08 335i Join Date: Apr 2017 Location: Atlanta iTrader: (0) Garage List 2007 BMW 335i E93 [10.00]	Well I ordered ARM catless DP's yesterday and since I was going there I also ordered an ARM 7" FMIC,DCI, and charge pipe. I still spent less than replacing one new cat lol. I'm going to do two DYNO runs one before and after see how much power this POS can make.
	Appreciate 0 Quote

03-12-2018, 12:36 PM	#7
Nexus313 Lieutenant 108 Rep 473 Posts Drives: 2016 BMW 340i 6MT Join Date: Aug 2015 Location: Toronto iTrader: (0)	Let me know if your rough idle gets better with new downpipe!
	Appreciate 0 Quote