1M HPFP Different than 335i

sdstatestud88 · 01-03-2012, 08:00 PM

I have heard a couple of rumors that the 1M hpfp is better than the current one in our 135/335 regardless if you have the original or most current one.

Can anyone confirm this?

enrita · 01-03-2012, 09:04 PM

Yes it is better apparently, should flow more as well.

rudebwoi · 01-03-2012, 09:18 PM

obvious next question would be is it interchangeable?

enrita · 01-03-2012, 09:44 PM

Quote:

Originally Posted by rudebwoi

obvious next question would be is it interchangeable?

yes , i think actually all new pumps have the same code as the 1M, check on realoem.com

Fred_Boosted · 01-03-2012, 10:09 PM

Problem is, not all N54s are running the same HPFP without problems...

Same engine not even same pump lol

zerep1 · 01-03-2012, 11:42 PM

The new pump I believe is called hpep or marketing purposes or high pressure exchange pump but it's the same crap and if you get your pump changed enough you will end up with this one the problem is that the hpfp is not the only issue in the fuel system but most other component benefit when it's replaced with a new one

jdub486 · 01-06-2012, 10:22 PM

The newest n54 pump is from the 1m. The part number ends in 170. I had the 933 pump for 10k miles before the long cranks started. I was not throwing any codes, but the dealer changed the pump with the 1m part without question.

onebadmofo · 01-06-2012, 10:39 PM

While we're on the subject, were there any 1M's with failed or failing pumps yet?

Proper Motion LLC · 01-06-2012, 10:45 PM

How long have then been using the 1M pump?

I went from having pump issues every 2 months to not having an issue the past 4-6 months

jb's335 · 01-07-2012, 11:05 PM

Quote:

Originally Posted by onebadmofo

While we're on the subject, were there any 1M's with failed or failing pumps yet?

+1

Also whoever does this upgrade first needs to figure out how to use the 1M's fuel lines as well, since they actually incorporate a fuel filter...

01-03-2012, 08:00 PM	#1
sdstatestud88 Lieutenant 91 Rep 444 Posts Drives: 2017 MW F80 Join Date: Oct 2009 Location: San Jose iTrader: (1)	1M HPFP Different than 335i I have heard a couple of rumors that the 1M hpfp is better than the current one in our 135/335 regardless if you have the original or most current one. Can anyone confirm this? __________________ 2017 Mineral White M3 Mods to COME
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01-03-2012, 09:04 PM	#2
enrita Major General 161 Rep 7,378 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Yes it is better apparently, should flow more as well. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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01-03-2012, 09:18 PM	#3
rudebwoi Second Lieutenant 48 Rep 216 Posts Drives: 17 F82 6MT ZCP Mineral White Join Date: Oct 2009 Location: SoFlo iTrader: (2)	obvious next question would be is it interchangeable? __________________ 2017 F82 ZCP 6M
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01-03-2012, 10:09 PM	#5
Fred_Boosted Captain 90 Rep 632 Posts Drives: 335i Join Date: Nov 2011 Location: USA iTrader: (1) Garage List 2010 BMW 335i [8.00]	Problem is, not all N54s are running the same HPFP without problems... Same engine not even same pump lol
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01-03-2012, 11:42 PM	#6
zerep1 Lieutenant 40 Rep 462 Posts Drives: 335i E90, 328i F30, 230i G42, Join Date: Nov 2010 Location: Tampa, Florida iTrader: (1)	The new pump I believe is called hpep or marketing purposes or high pressure exchange pump but it's the same crap and if you get your pump changed enough you will end up with this one the problem is that the hpfp is not the only issue in the fuel system but most other component benefit when it's replaced with a new one __________________ Irub
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01-06-2012, 10:22 PM	#7
jdub486 Captain 273 Rep 749 Posts Drives: 19' M2C dct/ e90 335d dd Join Date: Sep 2011 Location: Maryland iTrader: (1)	The newest n54 pump is from the 1m. The part number ends in 170. I had the 933 pump for 10k miles before the long cranks started. I was not throwing any codes, but the dealer changed the pump with the 1m part without question.
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01-06-2012, 10:39 PM	#8
onebadmofo Colonel 346 Rep 2,396 Posts Drives: 2008 E90 M3 Join Date: Aug 2010 Location: Central NJ iTrader: (14)	While we're on the subject, were there any 1M's with failed or failing pumps yet?
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01-06-2012, 10:45 PM	#9
Proper Motion LLC Custom Powder Coater 147 Rep 2,784 Posts Drives: White 335i Sedan Join Date: Dec 2008 Location: Orange County CA iTrader: (2)	How long have then been using the 1M pump? I went from having pump issues every 2 months to not having an issue the past 4-6 months __________________ www.propermotion714.com
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