Hpfp is it the problem?

Jr335idaily · 10-08-2018, 08:21 PM

So I took the car to the shop today and they said I had to codes for my crankshaft sensor and my fuel pump. My car has no lights on right now and it turns on fine haven't had a long crank expect on Friday? It will occasionally go into limp mode randomly.
Like I said no long crank and no SES light just randomly will go into limp mode and it will go away sometimes after I turn it off and on so should I believe the shop saying it's my fuel pump and crankshaft sensor or would it be something else?
I have these on my idrive when it goes into limp mode.

Twin_Snails · 10-09-2018, 02:10 AM

I think it might just be a bad crankshaft position sensor. When my sensor went bad it would go into limp mode and always stay in 3rd gear most all the time.

I remember when it first happened unusual amount of smoke came out of my exhaust and the car just shut off by itself Lol. Upon starting up again it would drive fine for like the first 5 mins and throw itself into limp mode. I would try with replacing your crankshaft position sensor first!

Jr335idaily · 10-09-2018, 08:13 AM

I took it to the mechanic yesterday and said I had 2 codes one for my fuel pump and the other for my crankshaft sensor. I already replaced all my coils and spark plugs along with 3 injectors all done by the mechanic. Should I just get a second opinion? I think I'll just replace the sensor first and see where that goes. Just yesterday I was driving and my car shut off complete and it was in drive but at a stop light at that time SES light came on. I had to put it in park and turn it off then on but it went into limp mode with and engine malfunction on.

Jklad · 10-11-2018, 10:09 PM

If you don't trust the shop, you can clear the codes yourself and wait for them to pop up again. If the crank sensor code comes up, that's easy enough to replace, then you can see if a fuel pump code comes up separately from there.

You never said which fuel pump.

Jeef · 10-12-2018, 09:57 AM

I'm not the one who usually says anything about multiple threads but you have started over 5+ threads asking about problems with your car.

Please keep it all to one thread so it's easier for people to help you.

TemjinX2 · 10-12-2018, 11:33 AM

i would just replace the crank shaft sensor...the part is cheap enough just to replace. I would also check to see if you have the newer HPFP part number. You could have the old version that never went through the recall.

Jr335idaily · 10-12-2018, 09:51 PM

Quote:

Originally Posted by Jklad

If you don't trust the shop, you can clear the codes yourself and wait for them to pop up again. If the crank sensor code comes up, that's easy enough to replace, then you can see if a fuel pump code comes up separately from there.

You never said which fuel pump.

I got a code for 2AAF, mechanic said it is my lpfp so I order a new one. I will be replacing it this coming week just waiting for the part.

Jr335idaily · 10-12-2018, 09:52 PM

Quote:

Originally Posted by TemjinX2

i would just replace the crank shaft sensor...the part is cheap enough just to replace. I would also check to see if you have the newer HPFP part number. You could have the old version that never went through the recall.

I'm going to replace the lpfp and the crankshaft sensor. The code was 2AAF

TemjinX2 · 10-15-2018, 10:43 AM

Quote:

Originally Posted by Jr335idaily

I'm going to replace the lpfp and the crankshaft sensor. The code was 2AAF

then i would just do the crankshaft sensor first and just reset the codes. 2aaf just means fuel pump plasubility.

https://www.e90post.com/forums/showthread.php?t=328320

jmb85 · 10-17-2018, 06:31 AM

Did you figure this out?

bluemonstr · 10-17-2018, 11:46 AM

change that crankshaft sensor - if you let it go - your car will eventually not allow you to drive. I waited on mine (I kept clearing the code) and the price difference is amazing between online and in person. Get it on ebay - 20bucks - cheap. Replacement - less than 30 mins.

Jr335idaily · 10-23-2018, 06:11 PM

Quote:

Originally Posted by jmb85

Did you figure this out?

I replaced the lpfp first and it still had lights and limp mode coming on. So the next day I changed the crankshaft sensor and it cleared it up only to have my service engine soon come on but after a couple drives it went away. I'm assume it had to get use to the new sensor?

10-08-2018, 08:21 PM	#1
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	Hpfp is it the problem? So I took the car to the shop today and they said I had to codes for my crankshaft sensor and my fuel pump. My car has no lights on right now and it turns on fine haven't had a long crank expect on Friday? It will occasionally go into limp mode randomly. Like I said no long crank and no SES light just randomly will go into limp mode and it will go away sometimes after I turn it off and on so should I believe the shop saying it's my fuel pump and crankshaft sensor or would it be something else? I have these on my idrive when it goes into limp mode. Attached Images __________________ E90
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10-09-2018, 02:10 AM	#2
Twin_Snails Private First Class 24 Rep 195 Posts Drives: E92 335i Join Date: Feb 2015 Location: San Diego iTrader: (5)	I think it might just be a bad crankshaft position sensor. When my sensor went bad it would go into limp mode and always stay in 3rd gear most all the time. I remember when it first happened unusual amount of smoke came out of my exhaust and the car just shut off by itself Lol. Upon starting up again it would drive fine for like the first 5 mins and throw itself into limp mode. I would try with replacing your crankshaft position sensor first!
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10-09-2018, 08:13 AM	#3
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	I took it to the mechanic yesterday and said I had 2 codes one for my fuel pump and the other for my crankshaft sensor. I already replaced all my coils and spark plugs along with 3 injectors all done by the mechanic. Should I just get a second opinion? I think I'll just replace the sensor first and see where that goes. Just yesterday I was driving and my car shut off complete and it was in drive but at a stop light at that time SES light came on. I had to put it in park and turn it off then on but it went into limp mode with and engine malfunction on. __________________ E90
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10-11-2018, 10:09 PM	#4
Jklad Lieutenant Colonel 421 Rep 1,643 Posts Drives: 2007 335i Coupe Join Date: Nov 2010 Location: Palatine, IL iTrader: (0)	If you don't trust the shop, you can clear the codes yourself and wait for them to pop up again. If the crank sensor code comes up, that's easy enough to replace, then you can see if a fuel pump code comes up separately from there. You never said which fuel pump. __________________ 2007 E92 335i MT
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10-12-2018, 09:57 AM	#5
Jeef Lieutenant Colonel 388 Rep 1,945 Posts Drives: AW E92 335i Join Date: Nov 2008 Location: San Diego, CA iTrader: (6)	I'm not the one who usually says anything about multiple threads but you have started over 5+ threads asking about problems with your car. Please keep it all to one thread so it's easier for people to help you.
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10-12-2018, 11:33 AM	#6
TemjinX2 Major 521 Rep 1,485 Posts Drives: 2008 335xi e92 Join Date: Dec 2009 Location: Socal OC iTrader: (0)	i would just replace the crank shaft sensor...the part is cheap enough just to replace. I would also check to see if you have the newer HPFP part number. You could have the old version that never went through the recall.
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10-17-2018, 06:31 AM	#10
jmb85 Second Lieutenant 12 Rep 290 Posts Drives: 335i Coupe Join Date: Sep 2012 Location: Miami, FL iTrader: (4)	Did you figure this out?
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10-17-2018, 11:46 AM	#11
bluemonstr Private 55 Rep 84 Posts Drives: '14 mini S,'08 335i mod'd Join Date: Apr 2014 Location: Orange, Ca (socal) iTrader: (0)	change that crankshaft sensor - if you let it go - your car will eventually not allow you to drive. I waited on mine (I kept clearing the code) and the price difference is amazing between online and in person. Get it on ebay - 20bucks - cheap. Replacement - less than 30 mins. __________________ bluemonstrs' - 335i sneaky little sedan, creeping up on you with a little this and that.
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