Engine Malfunction Reduced Power and P2298 code.

kabuda · 09-27-2017, 12:40 AM

Hi guys,

I'm running Test Pipe paired with modded exhaust and burble tune. Replaced all 4 o2 sensors this year in March. Parked the car in the garage for three month without touching it, and after I came back and drove it for around 1k miles, the check light came on again with code P2298 (O2 Sensor Out of Range During Deceleration Bank 2 Sensor 1). And sometimes if I idle the car for 5mins, the warning engine malfunction reduced power shows up, but never shows up while driving.

Lifted the car up today, nothing wrong underneath the car, o2 sensors are not loosen. Anyone one have any idea what is going on? Maybe the burble tune? Any advice other than get other tune? I found some people put a o2 sensor spacer on their car, but don't really know how it works, anyone can explain a little bit? Any suggestions will be appreciated.

Best,
Lucas

bvrider1 · 09-27-2017, 04:46 AM

Isn't the burble tune just dumping extra fuel? I wouldn't see why you don't start by troubleshooting the tune. Did this happen prior the tune?

kabuda · 09-27-2017, 10:47 AM

Quote:

Originally Posted by bvrider1

Isn't the burble tune just dumping extra fuel? I wouldn't see why you don't start by troubleshooting the tune. Did this happen prior the tune?

It has never happened prior the tune, I installed the test pipe and tune at the same time

Patrón · 09-27-2017, 11:09 AM

Quote:

Originally Posted by bvrider1

Isn't the burble tune just dumping extra fuel? I wouldn't see why you don't start by troubleshooting the tune. Did this happen prior the tune?

and with three month old gas, i'd guess both may be the issue.

M3anest · 06-08-2019, 12:28 AM

Sorry to revive an old thread, but I actually have the exact same issues you have mentioned. Idling too long sometimes causes the engine to go into limp and P2298 shows up sometimes during driving. I am running catless and burble as well

kabuda · 06-25-2019, 11:20 PM

Quote:

Originally Posted by M3anest

Sorry to revive an old thread, but I actually have the exact same issues you have mentioned. Idling too long sometimes causes the engine to go into limp and P2298 shows up sometimes during driving. I am running catless and burble as well

The burble tune is eating pre cat sensors.
I had 3 sets of burned o2 sensors already.

M3anest · 06-26-2019, 06:52 PM

Quote:

Originally Posted by kabuda

The burble tune is eating pre cat sensors.
I had 3 sets of burned o2 sensors already.

Haha, I knew it. Thanks for the update.

Joe_bmwM3 · 01-14-2025, 12:03 AM

Were you able to get this issue fixed my car running the same problem, no
Limp mode tho, car won’t set o2 sensors and I need to pass smog .
I have no burble tune

e92BeastMaster · 08-14-2025, 12:56 PM

My BMW M3 (S65) has the same symptoms/scenario as the original poster, but I see this thread never got resolved. See attached codes and advise if you ever got this issue resolved.

smokinjoe64 · 08-14-2025, 10:52 PM

PXXX codes are useless for robust diagnosing/troubleshooting.
Obtain a proper BMW centric diagnostic tool [i.e. ISTA and others]

09-27-2017, 12:40 AM	#1
kabuda Private First Class 47 Rep 159 Posts Drives: E46/E92 M3 F87M2 Join Date: Feb 2015 Location: CT/BeiJing iTrader: (1)	Engine Malfunction Reduced Power and P2298 code. Hi guys, I'm running Test Pipe paired with modded exhaust and burble tune. Replaced all 4 o2 sensors this year in March. Parked the car in the garage for three month without touching it, and after I came back and drove it for around 1k miles, the check light came on again with code P2298 (O2 Sensor Out of Range During Deceleration Bank 2 Sensor 1). And sometimes if I idle the car for 5mins, the warning engine malfunction reduced power shows up, but never shows up while driving. Lifted the car up today, nothing wrong underneath the car, o2 sensors are not loosen. Anyone one have any idea what is going on? Maybe the burble tune? Any advice other than get other tune? I found some people put a o2 sensor spacer on their car, but don't really know how it works, anyone can explain a little bit? Any suggestions will be appreciated. Best, Lucas __________________ 2013 BMW Frozen White E92 M3. 1 of 150 (In Love) Don't Die with Dreams, Die With Memories.
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09-27-2017, 04:46 AM	#2
bvrider1 Captain 404 Rep 850 Posts Drives: e90 m3 + f80 zcp Join Date: May 2016 Location: 3rdCoast iTrader: (4)	Isn't the burble tune just dumping extra fuel? I wouldn't see why you don't start by troubleshooting the tune. Did this happen prior the tune?
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06-08-2019, 12:28 AM	#5
M3anest Private 95 Rep 82 Posts Drives: 2013 M3 Alpine White Join Date: Jun 2018 Location: ON iTrader: (0)	Sorry to revive an old thread, but I actually have the exact same issues you have mentioned. Idling too long sometimes causes the engine to go into limp and P2298 shows up sometimes during driving. I am running catless and burble as well
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01-14-2025, 12:03 AM	#8
Joe_bmwM3 New Member 4 Rep 14 Posts Drives: E36,E46 Join Date: Jul 2021 Location: Santa Maria iTrader: (0)	Were you able to get this issue fixed my car running the same problem, no Limp mode tho, car won’t set o2 sensors and I need to pass smog . I have no burble tune
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08-14-2025, 12:56 PM	#9
e92BeastMaster Registered 0 Rep 3 Posts Drives: BMW 328i, BMW 335is Join Date: Jan 2020 Location: Michigan iTrader: (0)	My BMW M3 (S65) has the same symptoms/scenario as the original poster, but I see this thread never got resolved. See attached codes and advise if you ever got this issue resolved. Attached Images
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08-14-2025, 10:52 PM	#10
smokinjoe64 Tailhooker 4058 Rep 1,680 Posts Drives: e92 M3 6MT Join Date: Nov 2008 Location: OC SoCal iTrader: (1) Garage List 2012 BMW M3 [9.75] 2025 Mazda MX-5 [0.00] 2003 BMW M5 [0.00] 2024 Ranger Raptor [0.00]	PXXX codes are useless for robust diagnosing/troubleshooting. Obtain a proper BMW centric diagnostic tool [i.e. ISTA and others] __________________ e92 M3 - Interlagos Blue \| Recaro GTs w/Fox Red Extended \|Carbon Leather BPM Stage II; SuperSprint: header-back, catless, nonresonated, F1s; Infinity Design CF intake; Partee Racing CF plenum; do88 coolers; Bilstein B16 kit w/EDC, monoball links; Brembo BBK; AutoSolutions SSK
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