2AAF what could it be?

Jr335idaily · 10-09-2018, 03:37 PM

So the mechanic said that was the code and I figured it was my hpfp but he is saying it's the low pressure?
My car does go into limp mode and has engine malfunction and transmission malfunction with my brake light on and other lights. yesterday I was driving and my car shut off complete in drive I had to switch it to park and turn it back on it turned on fine.
He said I had a crankshaft sensor code but it would come and go. Is it my hpfp or a low pressure sensor or is it my crankshaft or all three?

Levanime · 10-09-2018, 03:47 PM

2AAF fuel pump, plausibility
(low pressure)

Jr335idaily · 10-09-2018, 05:22 PM

The mechanic said it was the lpfp so I should replace it right? It has nothing to do with the hpfp?

Jr335idaily · 10-09-2018, 05:23 PM

The lpfp will make my car go into limp mode?

Levanime · 10-09-2018, 07:53 PM

yes and yes

10-09-2018, 03:37 PM	#1
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	2AAF what could it be? So the mechanic said that was the code and I figured it was my hpfp but he is saying it's the low pressure? My car does go into limp mode and has engine malfunction and transmission malfunction with my brake light on and other lights. yesterday I was driving and my car shut off complete in drive I had to switch it to park and turn it back on it turned on fine. He said I had a crankshaft sensor code but it would come and go. Is it my hpfp or a low pressure sensor or is it my crankshaft or all three? __________________ E90
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10-09-2018, 03:47 PM	#2
Levanime BimECU 193 Rep 759 Posts Drives: BMW Join Date: Dec 2014 Location: SD iTrader: (0) Garage List 2007 BMW 335 [0.00]	2AAF fuel pump, plausibility (low pressure)
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10-09-2018, 05:22 PM	#3
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	The mechanic said it was the lpfp so I should replace it right? It has nothing to do with the hpfp? __________________ E90
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10-09-2018, 05:23 PM	#4
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	The lpfp will make my car go into limp mode? __________________ E90
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10-09-2018, 07:53 PM	#5
Levanime BimECU 193 Rep 759 Posts Drives: BMW Join Date: Dec 2014 Location: SD iTrader: (0) Garage List 2007 BMW 335 [0.00]	yes and yes
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