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THE BEAST THE BEAST is offline
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Default Heres a GOOD one. 2FCA, 2FDA, 2FDB - 11-11-2019, 01:47 AM

So searching 2FCA, 2FDA, 2FDB fault codes brings up.....nobody knows 🤣
Was found to be no description years ago.
Was found to be crank ventilation related Years ago.
Was found (VIA MHD) to COMMONLY be HPFP related. Yet people swapped hpfp and still had codes.
Commonly codes popped up after BMW updated software, tuned or stock, same codes. This was extremely common.
Now MHD comes up with crank sensor.
So which is it ???
Does anybody know ?
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THE BEAST THE BEAST is offline
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Default 11-11-2019, 12:10 PM

And here we have the same code (top and bottom), with a different description. Anyone know how that can be ? Root cause ?
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Default 11-11-2019, 12:15 PM

Odd...

Let me do a little digging too


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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THE BEAST THE BEAST is offline
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Default 11-11-2019, 12:17 PM

Thanks Dave....appreciate it.
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Default 11-14-2019, 01:21 PM

So whats the word Dave ?
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Default 11-15-2019, 11:10 AM

I believe it is strictly the CODE that is pulled by the JB4 or MHD apps.
Then the apps have an associated description, which could account for the discrepancy.

Dave, based on the fact that the JB4 App has all the correlated descriptions, do you have access to the CODES and descriptions so these discrepancies can be overcome with confidence?




2008 335i Convertible, E93, N54, A/T (200,000+ km)
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Default 11-15-2019, 08:44 PM

I only have access to what JB4 pulls.

Not sure why theirs a difference as to what mhd pulls, especially seeing it’s the same code.

I emailed mhd - have not heard back yet tho : /

Positive- is it’s an inactive code


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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THE BEAST THE BEAST is offline
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Default 11-15-2019, 09:26 PM

I emailed them as well. Best they could come up with was tune related. Makes no sence though. A code, is a code, regardless of tune or flash. IMO.
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ToolMaker335xi ToolMaker335xi is offline
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Default 11-16-2019, 12:58 PM

Showed the same codes this morning along with 2FA3.
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RB 2’s - inlets - dp’s - borla mids - cp/bov- stage2LPFP -Hybrid e85_bef
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Default 11-16-2019, 02:29 PM

Quote:
Originally Posted by ToolMaker335xi
Showed the same codes this morning along with 2FA3.
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Default 12-12-2019, 05:34 PM

Daveeeeeeeeee.......you ever look into this ??
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Default 12-12-2019, 06:44 PM

I prefer "Davey" with a "y".

Oh, not Trebila Dave, not me Davey... the BMS Dave!
I'm on it.
Wait... I'm not him.

He'll be right back.




2008 335i Convertible, E93, N54, A/T (200,000+ km)
Wheels: 322 | Tires: R.275/35r18, F.245/40r18
TUNE: JB4/Trebila | 24 PSI | 100% Meth via dual CM5 | 94 Octane
BMS: JB4, Map 6 | WMI | 5" FMIC | OCC | DCI | Cowel Filters
RB: Inlets | PCV Valve
VRSF: DiPis | CP
HKS BOV
xHP Stage 3
NGK-97506 @ .020

Maintenance:
2018 - A/T Replaced | Ign Coils | Walnut Blast
2019 - Index 12 Injectors | VCG | OFHG & O-rings | TStat
2020 - OPG | Battery | IBS | Water Pump | Plugs | Alternator
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Default 12-12-2019, 07:55 PM

Quote:
Originally Posted by THE BEAST
Daveeeeeeeeee.......you ever look into this ??
Never heard back from MHD

But based on what I could dig up- I don’t think the issue / error is “present” making it more of a shadow code.

Any performance issues?


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 12-12-2019, 09:52 PM

Quote:
Originally Posted by Dave @ BMS/Fuel-It!
Never heard back from MHD

But based on what I could dig up- I don’t think the issue / error is “present” making it more of a shadow code.

Any performance issues?
Only issue is recently i have been getting crappy timing drops, then the next day its fine. Different cylinders, just strange. Wondering if its related. Its not fuel, plugs or coils, injectors etc. Im swapping it out tomorrow n see what happens (crank sensor)
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Default 12-13-2019, 02:25 PM

Well that did absolutely nothing ��
At least it was a quick 10 min swap.
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Default 12-29-2019, 02:10 AM

same here just recently noticed on MHD when I scan for errors It shows
- DME shadow (inactive) codes - 2FDB - Crankshaft sensor, signal, Not plausible

any one figured it if replacing the crankshaft sensor solve it or its not related?


09 E92 335i - Hot-Climate Middle East package, M Sports suspension, 19" Rims, 6AT fully built internals, bushings, raybestos clutches and sonnax with xHP stage 3, Differential lockdown, New RB Turbo CHRA, JB4 - Map 3 70 adder with N20 TMAP - MHD BMS Race Flash with Tuned Duty Bais and PID - BMS Oil Cooler Valve - RB PCV - K&N DCI - AFE Air Scoops - 98 Super Fuel - WAGNER FMIC - 3" down's, RB Inlets- BMS charge pipe With Tial BOV - BMS Meth Kit with FSB, 30/70 Water/Meth on CM12 nozzle
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Default 12-29-2019, 07:20 AM

Quote:
Originally Posted by Rushan
same here just recently noticed on MHD when I scan for errors It shows
- DME shadow (inactive) codes - 2FDB - Crankshaft sensor, signal, Not plausible

any one figured it if replacing the crankshaft sensor solve it or its not related?
Post above yours
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Default 12-30-2019, 03:48 AM

Quote:
Originally Posted by THE BEAST
Post above yours
Oh ok just noticed it....

so no need for me to bother with buying a new sensor


09 E92 335i - Hot-Climate Middle East package, M Sports suspension, 19" Rims, 6AT fully built internals, bushings, raybestos clutches and sonnax with xHP stage 3, Differential lockdown, New RB Turbo CHRA, JB4 - Map 3 70 adder with N20 TMAP - MHD BMS Race Flash with Tuned Duty Bais and PID - BMS Oil Cooler Valve - RB PCV - K&N DCI - AFE Air Scoops - 98 Super Fuel - WAGNER FMIC - 3" down's, RB Inlets- BMS charge pipe With Tial BOV - BMS Meth Kit with FSB, 30/70 Water/Meth on CM12 nozzle
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dcafs dcafs is offline
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Default 01-28-2020, 10:00 AM

Same issue for me.....
In the past, I would always get 2FCA and 2FDA shadow codes and MHD always indicated it was HPFP related and benign.

Never affected performace.

Now, more recently MHD is now showing 2FDA as Crankshaft sensor signal-missing.

To add to the confusion, I now have a brand new third shadow code 2FDB - Crankshaft sensor signal - not plausible.

No effect on performance.

Common advice in the past was that these were harmless codes you got when the HPFP was replaced under recall.

All of a sudden the same shadow codes are indicating a crankshaft sensor issue
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Default 01-28-2020, 10:55 AM

Quote:
Originally Posted by dcafs
Same issue for me.....
In the past, I would always get 2FCA and 2FDA shadow codes and MHD always indicated it was HPFP related and benign.

Never affected performace.

Now, more recently MHD is now showing 2FDA as Crankshaft sensor signal-missing.

To add to the confusion, I now have a brand new third shadow code 2FDB - Crankshaft sensor signal - not plausible.

No effect on performance.

Common advice in the past was that these were harmless codes you got when the HPFP was replaced under recall.

All of a sudden the same shadow codes are indicating a crankshaft sensor issue
My advice is, ignore it.
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boris91 boris91 is offline
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Default 01-28-2020, 05:11 PM

I had an issue where my car died in traffic twice. First time I changed lpfp sensor and it was fine for 2 weeks. Car died again and then I replaced HPFP. After replacing HPFP I had a 2FCA and 2FDA code. I cleared and it never came back. Tonight my car died again after idling in my driveway with a fuel pump warning on the iDrive screen. Not sure where to go from here and what to replace. Need to go scan it when my tablet charges.


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jts1981 jts1981 is offline
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Default Been wrestling with this for a long time - 02-26-2020, 07:32 AM

I've had random codes pop up. earlier this year was 2A7A Camshaft position controller, exhaust, cold.

I replaced vans solenoids, filters, cam gears (ledges are fine)

it seemed to go away but came back randomly once.

Since then I've been getting 2FDA Crankshaft sensor, signal missing.

I replaced HPFP and sensor but still no luck. I do noticed it pops up with a hesitant start, and I've noticed idle is a 500-600 rpm. Is that too low? Could it be battery related? I had low battery warning pop up recently as well.

Any info would be much appreciated.
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