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2Addicts | BMW 2-Series forum Technical Topics N55 (M235i) Engine, Transmission, Exhaust, Tuning N55 HPFP Upgrade

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      01-11-2018, 07:05 PM   #45
Bombermon3
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With a PS2, can I get away with running meth, and a in tank upgraded fuel pump?
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      01-17-2018, 03:36 PM   #46
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I did read that MHD had 2 vendors looking at an aftermarket HPFP to solve those issues..
MHD Tuning
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      04-07-2018, 02:15 PM   #47
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      08-30-2018, 02:37 AM   #48
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Thread revival but why cant we used the m2 n55 hpfp?
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      08-30-2018, 03:36 AM   #49
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Quote:
Originally Posted by TwistedX View Post
Thread revival but why cant we used the m2 n55 hpfp?
It's the same shit HPFP
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      08-30-2018, 07:50 AM   #50
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Quote:
Originally Posted by Tricki View Post
It's the same shit HPFP
Ohh well wow didn't know that. Figured an M care would of gotten better
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      08-31-2018, 04:26 AM   #51
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Quote:
Originally Posted by TwistedX View Post
Thread revival but why cant we used the m2 n55 hpfp?
If you have deep pockets then TTFS have a solution in the link below

http://tuningtechfs.com/ttfs-n55-hig...p-single-pump/

Discussed on F87post forum thread below

https://f87.bimmerpost.com/forums/sh....php?t=1501737
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      08-31-2018, 01:43 PM   #52
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Bosch also made an HPFP... but have not seen any testing or reviews, price is too good to be true. anyone know about this??


https://www.boschautoparts.com/en/au...-pressure-pump
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      09-01-2018, 02:02 AM   #53
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TTFS also do oem s55 dual HPFP kit for n55 at over $5k

https://store-xtdgx.mybigcommerce.co...0-5297c3e66d11
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      07-09-2019, 08:57 AM   #54
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Hey guys,

Not M235i related but almost the same,

I've got an N55 2012 135i with Injen intake, catless downpipe and m performance exhaust and Cobb APV3.

When going to track days I been having issues when exiting turn under full throttle in 3rd gear.
Usually car goes in heavy Limp Mode and following codes appear.
P2EFE –
P2F04 –
P2F02 –
P2EE0 –
P2EF4 –
P2EED –

Yesterday after a few times clearing codes and heading back out I got a smaller limp mode and this code only came up.
P2C01 -

Switched maps a few time to see if it would change anything, but it didn't the only solution I found to delay the coding/limp mode was being light on the throttle and accelerate gradually at a very slow rate.

As of now I changed plugs to NGK 97506 gapped to 0.022 but that didn't change anything.

I've been reading around and as of now figured it could be coils, injectors, HPFP, or even that my tune would need to be revised, so before changing everything and not knowing if either its going to resolve my problem. Can someone who has had this issue help me out.
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      07-11-2019, 03:44 AM   #55
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Quote:
Originally Posted by st-pierre View Post
Hey guys,

Not M235i related but almost the same,

I've got an N55 2012 135i with Injen intake, catless downpipe and m performance exhaust and Cobb APV3.

When going to track days I been having issues when exiting turn under full throttle in 3rd gear.
Usually car goes in heavy Limp Mode and following codes appear.
P2EFE –
P2F04 –
P2F02 –
P2EE0 –
P2EF4 –
P2EED –

Yesterday after a few times clearing codes and heading back out I got a smaller limp mode and this code only came up.
P2C01 -

Switched maps a few time to see if it would change anything, but it didn't the only solution I found to delay the coding/limp mode was being light on the throttle and accelerate gradually at a very slow rate.

As of now I changed plugs to NGK 97506 gapped to 0.022 but that didn't change anything.

I've been reading around and as of now figured it could be coils, injectors, HPFP, or even that my tune would need to be revised, so before changing everything and not knowing if either its going to resolve my problem. Can someone who has had this issue help me out.
Quote:
Originally Posted by st-pierre View Post
Hey guys,

Not M235i related but almost the same,

I've got an N55 2012 135i with Injen intake, catless downpipe and m performance exhaust and Cobb APV3.

When going to track days I been having issues when exiting turn under full throttle in 3rd gear.
Usually car goes in heavy Limp Mode and following codes appear.
P2EFE –
P2F04 –
P2F02 –
P2EE0 –
P2EF4 –
P2EED –

Yesterday after a few times clearing codes and heading back out I got a smaller limp mode and this code only came up.
P2C01 -

Switched maps a few time to see if it would change anything, but it didn't the only solution I found to delay the coding/limp mode was being light on the throttle and accelerate gradually at a very slow rate.

As of now I changed plugs to NGK 97506 gapped to 0.022 but that didn't change anything.

I've been reading around and as of now figured it could be coils, injectors, HPFP, or even that my tune would need to be revised, so before changing everything and not knowing if either its going to resolve my problem. Can someone who has had this issue help me out.
You should create your own thread.
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      08-20-2019, 05:56 PM   #56
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I知 installing the XDI-60 HPFP and the Fuel-It Stage 2 LPFP. I値l make a thread once I do that and the upgraded turbo.
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      08-22-2019, 12:51 AM   #57
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Quote:
Originally Posted by c-m View Post
I知 installing the XDI-60 HPFP and the Fuel-It Stage 2 LPFP. I値l make a thread once I do that and the upgraded turbo.
That is something I would really know the outcome of. looking forward to your thread
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      08-22-2019, 06:43 AM   #58
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What about the B58 pump that is mentioned on other forums? Surprised that hasn't been brought up here?
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      09-03-2019, 02:24 AM   #59
Amack
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Quote:
Originally Posted by c-m View Post
I’m installing the XDI-60 HPFP and the Fuel-It Stage 2 LPFP. I’ll make a thread once I do that and the upgraded turbo.
All the tuners I speak to say the lpfp isn't needed as long as u have the hpfp.

Be careful with the lpfp to hpfp hose. Mine leaked and had to get it replaced with a custom hose.
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      09-03-2019, 06:19 AM   #60
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Quote:
Originally Posted by Amack View Post
All the tuners I speak to say the lpfp isn't needed as long as u have the hpfp.

Be careful with the lpfp to hpfp hose. Mine leaked and had to get it replaced with a custom hose.
I got a good deal on it and was worried about the stock LPFP burning up to supply the HPFP efficiently. I値l keep the hose in mind. Thanks for the heads up! Figured if I was spending that much on the HPFP, might as well upgrade the LPFP. Better safe than sorry.
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