29F5 and 29d4 codes after catless headers

S65Hunter · 04-23-2021, 08:34 AM

Installed Roundel Werk catless headers over the weekend, before start up I did the Stage FP tune (3sim and catless headers) went for a couple short drives and everything was fine. Went to work this morning this morning SES came on with these codes. Any ideas?

E92_William · 04-23-2021, 09:35 AM

I think I have those too. Probably from the dme realizing the Catalytics aren't cleaning as well anymore lol

S65Hunter · 04-23-2021, 10:09 AM

Lol right. I just thought the tune was supposed to keep the SES from coming on

E92_William · 04-23-2021, 10:15 AM

I thought all tunes for headers did that too. I think it keeps the drive monitor for it always reset so it doesn't throw it. I'd contact them

S65Hunter · 04-23-2021, 10:26 AM

I'm going to clear the codes once I get off work and see if they come back

Bufalo · 04-26-2021, 08:22 AM

How's it been since you last cleared? Installed the same headers yesterday, haven't haven't changed tune software yet, no SES/CEL, but have only driven about 4 miles so far.

S65Hunter · 04-26-2021, 10:23 AM

After I cleared it, it came back the next day. I'm wondering I having the secondary cats in place is in issue or maybe I mixed up thr o2 sensors orientation

E92_William · 04-26-2021, 12:36 PM

Shouldn't it still ignore these codes regardless if it's tuned for headers and to not show the ses light? As far as I'm concerned it will say it's not cleaning no matter which bank they're put in. Also secondaries don't really have any sensor so

S65Hunter · 04-26-2021, 12:51 PM

Yeah thats true. I left my laptop at work (don't go back in til Wednesday) I may try and re flash the tune, maybe it didn't take. If that dosent work, im going to email Bob

hassmaschine · 04-26-2021, 01:49 PM

re-flashing is unlikely to do anything. if a flash doesn't "take", then the car simply won't run. There's not a "well, most of it flashed but this part didn't" option..

Maybe they missed disabling those codes. I'd just email them and ask.

S65Hunter · 04-26-2021, 06:16 PM

Ok cool, ill do that. My next step was going to be to summon you

hassmaschine · 04-26-2021, 10:09 PM

yeah, turning them off is easy - but you're already paying Bob, so he's your best bet.

04-23-2021, 08:34 AM	#1
S65Hunter Major 1185 Rep 1,455 Posts Drives: 2009 E92 M3 Join Date: May 2018 Location: Dallas TX iTrader: (0) Garage List [0.00]	29F5 and 29d4 codes after catless headers Installed Roundel Werk catless headers over the weekend, before start up I did the Stage FP tune (3sim and catless headers) went for a couple short drives and everything was fine. Went to work this morning this morning SES came on with these codes. Any ideas? __________________ 2008 328i e93- 3SIM, StageFP tune, magna flow #12148 muffler + vibrant resonator, BMS filters, Bilstein B8s, H&R sport springs, ECS sway bars, whiteline rear subframe bushings, rouge engineering trans mounts, custco front strut bar, M3 front lower control arms. Cosmis R1 18x8.5 245/40 front 18x9.5 255/35 rear.
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04-23-2021, 09:35 AM	#2
E92_William Captain 1306 Rep 852 Posts Drives: 2008 BMW 328xi Join Date: Apr 2021 Location: South Florida iTrader: (0)	I think I have those too. Probably from the dme realizing the Catalytics aren't cleaning as well anymore lol __________________ Airplane Mechanic BMW Masochist
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04-23-2021, 10:09 AM	#3
S65Hunter Major 1185 Rep 1,455 Posts Drives: 2009 E92 M3 Join Date: May 2018 Location: Dallas TX iTrader: (0) Garage List [0.00]	Lol right. I just thought the tune was supposed to keep the SES from coming on
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04-23-2021, 10:15 AM	#4
E92_William Captain 1306 Rep 852 Posts Drives: 2008 BMW 328xi Join Date: Apr 2021 Location: South Florida iTrader: (0)	I thought all tunes for headers did that too. I think it keeps the drive monitor for it always reset so it doesn't throw it. I'd contact them __________________ Airplane Mechanic BMW Masochist
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04-23-2021, 10:26 AM	#5
S65Hunter Major 1185 Rep 1,455 Posts Drives: 2009 E92 M3 Join Date: May 2018 Location: Dallas TX iTrader: (0) Garage List [0.00]	I'm going to clear the codes once I get off work and see if they come back
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04-26-2021, 08:22 AM	#6
Bufalo Second Lieutenant 124 Rep 288 Posts Drives: 2009 328i Join Date: Dec 2011 Location: Harrisburg, PA iTrader: (1) Garage List 2017 BMW X3 35i [0.00] 2009 BMW 328i [0.00]	How's it been since you last cleared? Installed the same headers yesterday, haven't haven't changed tune software yet, no SES/CEL, but have only driven about 4 miles so far.
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04-26-2021, 10:23 AM	#7
S65Hunter Major 1185 Rep 1,455 Posts Drives: 2009 E92 M3 Join Date: May 2018 Location: Dallas TX iTrader: (0) Garage List [0.00]	After I cleared it, it came back the next day. I'm wondering I having the secondary cats in place is in issue or maybe I mixed up thr o2 sensors orientation
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04-26-2021, 12:36 PM	#8
E92_William Captain 1306 Rep 852 Posts Drives: 2008 BMW 328xi Join Date: Apr 2021 Location: South Florida iTrader: (0)	Shouldn't it still ignore these codes regardless if it's tuned for headers and to not show the ses light? As far as I'm concerned it will say it's not cleaning no matter which bank they're put in. Also secondaries don't really have any sensor so __________________ Airplane Mechanic BMW Masochist
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04-26-2021, 12:51 PM	#9
S65Hunter Major 1185 Rep 1,455 Posts Drives: 2009 E92 M3 Join Date: May 2018 Location: Dallas TX iTrader: (0) Garage List [0.00]	Yeah thats true. I left my laptop at work (don't go back in til Wednesday) I may try and re flash the tune, maybe it didn't take. If that dosent work, im going to email Bob
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04-26-2021, 01:49 PM	#10
hassmaschine Major General 3966 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	re-flashing is unlikely to do anything. if a flash doesn't "take", then the car simply won't run. There's not a "well, most of it flashed but this part didn't" option.. Maybe they missed disabling those codes. I'd just email them and ask.
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04-26-2021, 06:16 PM	#11
S65Hunter Major 1185 Rep 1,455 Posts Drives: 2009 E92 M3 Join Date: May 2018 Location: Dallas TX iTrader: (0) Garage List [0.00]	Ok cool, ill do that. My next step was going to be to summon you
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04-26-2021, 10:09 PM	#12
hassmaschine Major General 3966 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	yeah, turning them off is easy - but you're already paying Bob, so he's your best bet.
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