Code 2AAF E90 325i N53

lumines3413 · 12-09-2024, 05:10 AM

Recently my car has vibration when I push engine start button and found code 2AAF.
I consulted Bosch car service and they replace low pressure fuel pump.
But I feel vibration again on cold day. And there is code 2AAF again.

Do you have any idea to repair my car?
Mileage 78500km
Replacing ignition coil at 36000km
Replacing spark plug at 71000km
Replacing NOx sensor at 77500km

firesnatch · 12-09-2024, 04:14 PM

Search the forum for that error. For example:

https://www.e90post.com/forums/showp...68&postcount=7

Seems like if you have that code alone and no other codes, it is not something to worry about.

lumines3413 · 12-09-2024, 05:21 PM

Thanks for your answer.
As you mentioned I’ve already searched and read the post you referred.

But as for my situation, I feel vibration few seconds after pushing starting button.
It is my concern.
The vibration stops when I press acceleration pedal.

But I feel it again when engine start at cold morning.

Additionally, I found code A6CE JBE: AUC Sensor at same time. But I imagine it is not related the vibration.

Phil325i · 12-10-2024, 03:05 AM

If the vibration happens only on cold starts I'd suspect a misfire caused by a failing injector...

12-09-2024, 05:10 AM	#1
lumines3413 Registered 0 Rep 2 Posts Drives: 325i E90 N53 Join Date: Dec 2024 Location: Japan iTrader: (0)	Code 2AAF E90 325i N53 Recently my car has vibration when I push engine start button and found code 2AAF. I consulted Bosch car service and they replace low pressure fuel pump. But I feel vibration again on cold day. And there is code 2AAF again. Do you have any idea to repair my car? Mileage 78500km Replacing ignition coil at 36000km Replacing spark plug at 71000km Replacing NOx sensor at 77500km
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12-09-2024, 04:14 PM	#2
firesnatch Private 31 Rep 72 Posts Drives: 2008 328i 6MT Join Date: Apr 2011 Location: Aurora, IL iTrader: (0)	Search the forum for that error. For example: https://www.e90post.com/forums/showp...68&postcount=7 Seems like if you have that code alone and no other codes, it is not something to worry about.
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12-09-2024, 05:21 PM	#3
lumines3413 Registered 0 Rep 2 Posts Drives: 325i E90 N53 Join Date: Dec 2024 Location: Japan iTrader: (0)	Thanks for your answer. As you mentioned I’ve already searched and read the post you referred. But as for my situation, I feel vibration few seconds after pushing starting button. It is my concern. The vibration stops when I press acceleration pedal. But I feel it again when engine start at cold morning. Additionally, I found code A6CE JBE: AUC Sensor at same time. But I imagine it is not related the vibration.
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12-10-2024, 03:05 AM	#4
Phil325i Brigadier General 649 Rep 3,232 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	If the vibration happens only on cold starts I'd suspect a misfire caused by a failing injector... __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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