[dphjr]

Well, I thought this was fixed in this year's model, but I believe my fuel pump has gone out. Starting up the car reveals an awful choking sound with the rpms varying drastically. At this point, I have two options. Either remove the mods and take to the dealer or find a third party shop to do the work.

My dealer has never raised a stink about my mods when it came to maintenance in the past, so I wouldn't rule them out entirely in getting it fixed.

What do y'all think would be my best course of action? Build list in signature.

[wjjkoevoets]

Pull a log from the JB4 and look at fp_h value? If it's crazy low then I think it would be fairly safe to assume to HPFP is on its way out.

[riccappa]

There was a recall on mine and had it replaced under that. Check if it's applicable to your model/year. Mine was a 2014 M235i.

[golf4501]

Originally Posted by dphjr

Well, I thought this was fixed in this year's model, but I believe my fuel pump has gone out. Starting up the car reveals an awful choking sound with the rpms varying drastically. At this point, I have two options. Either remove the mods and take to the dealer or find a third party shop to do the work.

My dealer has never raised a stink about my mods when it came to maintenance in the past, so I wouldn't rule them out entirely in getting it fixed.

What do y'all think would be my best course of action? Build list in signature.

Not sure what your course of action should be, but I just got a recall on my 2014 for low pressure fuel pump as well. The SA said the additives in US gas is causing issues with them. I had no symptoms, but had it fixed as part of the recall.

[B_Rice]

Are you sure it's not your intake?

[ocN55]

Originally Posted by B_Rice

Are you sure it's not your intake?

+1

Recheck your clamps on the intake. I had a similar experience only to find that I simply had a loose clamp on the filter

[mike@x-ph.com]

Log and post results

[abirmaher]

Originally Posted by dphjr

Well, I thought this was fixed in this year's model, but I believe my fuel pump has gone out. Starting up the car reveals an awful choking sound with the rpms varying drastically. At this point, I have two options. Either remove the mods and take to the dealer or find a third party shop to do the work.

My dealer has never raised a stink about my mods when it came to maintenance in the past, so I wouldn't rule them out entirely in getting it fixed.

What do y'all think would be my best course of action? Build list in signature.

Doesn't sound like LPFP if it's as described.

[dphjr]

I am honestly baffled. I started up the car yesterday and it ran like it never had an issue. Drove around for 30-40 mins with no problems whatsoever. I think my JB4 might be going haywire or something.

170206_2229.zip

I've attached a csv log of some moderate pulls, whichever map is stock performance with jb4 enabled. I really don't want to push the car hard until I know for sure what is causing this issue. Pulling codes from jb4 only gives me an "exhaust flapper disabled"...

[Fabspeed Motorsport]

I have a feeling it is your intake. There a handful of threads with similar issues with the intake. Try taking it off and running it around for a couple weeks without it and see if you have different results.

[Taunto]

I will put money down saying it's not your intake and i can bloody guarantee its not your HPFP.

Try using different top tier fuel from top tier fuel stations and see if the problem goes away. This issue is typically caused by a few different problems and this is a very common and on going issue with the the N55 engine.

if the Different fuel didn't make a difference over the next month, id have it inspected, Eccentric shafts on the valvetronic can develop the slightest amount of grooving/wear into them and it will cause them too become stiff and somewhat bind on start up (there is a test plan through the BMW tester from your dealer for them to test this).

Another issue is the Hook ring seals on the front of the Intake camshaft start to wear through aluminum in the cylinder head and bleed oil pressure from the Vanos control unit which causes the Vanos unit not able to adjust fully since it's loosing oil pressure (this will usually trigger a 2A80D fault tho and in most cases a C.E.L as well)

The last issue i have seen is Injectors.

You can try running the car from Map 1-map 2 and Map 5 to see if the problem changes.. see if the idle issue happens on Map 0? it would help narrow down your issue if its a software/tune issue on the JB4 or something else.

Sorry if it is a long message and i hope it was somewhat useful.

Also there is a current Recall on almost all Models with N55 Engines to replace the LPFP - Contact your dealer and give them your VIN to find out if your vehicle applys to the recall or not.

if anyone finds this issue being caused by a HPFP please message me showing documentation cause every since the old HPFP recall.. i've never heard/seen of one going.

[Drpoomanchu]

I called a local BMW dealer today to check on my warranty. I asked the SA if my LPFP had been replaced under recall and he said no but the warranty on it had been extended for 9 years 120,000mi. I told him others with 14' m235i's had been getting calls or having replaced once in for service as recall. I asked him what would happen if I came in and requested a replacement and he said they would not honor a replacement under warranty without diagnostics showing issues. Anyone else had this replaced..?

[Taunto]

Not to sure if this helps ur case.
let me know if this Link doesnt work.

Looks like 2011-2014 with in those build months.

[Drpoomanchu]

Originally Posted by Taunto

Not to sure if this helps ur case.
let me know if this Link doesnt work.

Looks like 2011-2014 with in those build months.

Link isn't working for some reason

[Taunto]

I will try and copy and paste the entire recall when I get home from work

[Drpoomanchu]

Originally Posted by Taunto

I will try and copy and paste the entire recall when I get home from work

Cool thnx

[Taunto]

Management/
Gestion
Service/reception
Réception / service
Service/ workshop
Atelier / service
Service/warranty
Garantie/service
Parts and access.
Pièces et access.
Sales
Ventes
Fix it right the first time is our ultimate goal. 16 84 16
BMW Canada Inc
Quality and Technical
1
Page 1 of 3
December 2016 Service Information
Aftersales Service
Fuel Supply Systems 16 84 16
Service Campaign
PERFORM THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION ON
ALL AFFECTED VEHICLES PRIOR TO RETAIL DELIVERY. WHERE THE
VEHICLES HAVE ALREADY BEEN DELIVERED TO THE CUSTOMER, THE
CUSTOMER SHOULD BE REQUESTED TO BRING THEIR VEHICLE INTO THE
WORKSHOP IN THE NEAR FUTURE.
SUBJECT
Replace the fuel delivery unit
MODEL
F22 2 Series Coupe
F30 3 Series Sedan
F32 4 Series Coupe
F33 4 Series Cabriolet
F34 3 Series Gran Turismo
SITUATION
A special coating in the running wheel of the electric fuel pump may wear prematurely and may
cause additional friction. Consequently, the fuel pump may no longer start running when the
vehicle is started.
AFFECTED VEHICLES
This Service Action involves F22 2 Series Coupe, F30 3 Series Sedan, F32 4 Series Coupe, F33 4
Series Cabriolet and F34 3 Series Gran Turismo vehicles, equipped with a N55 engine and
produced from October 18, 2011 to April 2, 2014.
In order to determine if a specific vehicle is affected by this Service Action, it will be necessary to
utilize ISPA. Based on the response of the system, either proceed with the corrective action or
take no further action.
The Chassis Ranges listed below are only for informational purposes and are not to be considered
as the only deciding factor.
Management/
Gestion
Service/reception
Réception / service
Service/ workshop
Atelier / service
Service/warranty
Garantie/service
Parts and access.
Pièces et access.
Sales
Ventes
Fix it right the first time is our ultimate goal. 16 84 16
BMW Canada Inc
Quality and Technical
2
Model Model Code Chassis Range
F22 1J73 VX33519 – VX33792
F22 1J83 VW84067 – VW84948
F30 3A03 F269600 – F271066
F30 3A03 F474870 – F479635
F30 3A03 FX59547 – FX59999
F30 3A93 F077636 – F078093
F30 3A93 F686007 – F686519
F30 3B03 F140017 – F140499
F30 3B03 F585000 – F588588
F30 3B03 J437025 – J437497
F30 3B03 J898900 – J899578
F30 3B03 P458005 – P459198
F30 3B93 F140510 – F140981
F30 3B93 F801014 – F801485
F30 3B93 J465617 – J466150
F30 3F03 F145061 – F484220
F32 3R13 F774015 – F774404
F32 3R23 F729101 – F729412
F32 3R23 K190047 – K191979
F32 3R53 F784510 – F785115
F32 3R63 F730029 – F730367
F32 3R63 K186043 – K188227
F33 3T43 J876441 – J877377
F33 3T43 P736606 – 736854
F34 3X03 D152736 – D153699
F34 3X03 D867604 – D867654
CORRECTION
Replace the supply unit.
PROCEDURE
The electric fuel pump cannot be replaced separately. Therefore, the entire supply unit must be
replaced.
See repair instructions REP 16 14 010 Remove and refit/replace fuel pump (petrol
vehicles).
Management/
Gestion
Service/reception
Réception / service
Service/ workshop
Atelier / service
Service/warranty
Garantie/service
Parts and access.
Pièces et access.
Sales
Ventes
Fix it right the first time is our ultimate goal. 16 84 16
BMW Canada Inc
Quality and Technical
3
PARTS INFORMATION
Part number Description Engine Quantity
16 11 7 243 975 Supply module N55 1
16 14 7 264 433 Supply module N55 Hybrid 1
16 11 7 188 567 O-ring All 1
16 11 7 428 463 O-ring All 1
Note:
The two O-rings listed above are always required for replacing the delivery module.
In principle, parts requiring replacement as part of a Technical Campaign are not subject to the
TeileClearing process.
WARRANTY INFORMATION
Reimbursement for this Service Action will be via Campaign Entry.
Note: The Labour Operations listed below include charging the battery and the
Allowances are subject to change. Please always refer to KSD at time of actual warranty
claim submission for the most current Labour Allowance information pertaining to this
defect code.
Defect Code 00 16 16 02 00
Description: Replace the right-hand supply module
Labour Operation: 00 64 776
Labour Allowance:
8 FRU (F22)
7 FRU (F30, F32, F33, F34)
Parts Allowance: As outlined above

[Taunto]

Apologize for it not being neat and organized lol.. i just clicked select all and copy/paste cause im lazy lol

[dphjr]

You know, it might actually have been the intake. I haven't taken it off yet, however it was extremely cold that day (probably 18F), and recently it hasn't been near that cold. I remember people saying that they sometimes have rough cold starts. I've been using Sunoco 93, I suppose I can try Shell 93 instead, but there aren't many shell stations near me.