Shadow code help...

m_fife · 12-01-2015, 09:48 PM

Flash back to stock and see if they go away. I think they are flash related. I have the, when flash installed, but not when stock.

xcusem3 · 12-03-2015, 03:47 PM

Quote:

Originally Posted by igotag

Flash back to stock and see if they go away. I think they are flash related. I have the, when flash installed, but not when stock.

Good point, I'll give it a try fully stock later tonight and get back to you.

m_fife · 12-05-2015, 05:31 PM

Correction: Flash to Stock..... Clear all codes.... Then see if they return.

xcusem3 · 12-08-2015, 11:59 AM

It's been a couple days, codes have not returned yet. I can't seem to feel the power surges as much as before but I suspect most of that is because the car just doesn't pull as hard as it did when it's running 20+psi. I guess I'll wait and see if the codes return.

csu87 · 12-08-2015, 12:07 PM

Well yeah if you have weak fuel pumps then tuning will expose them. Doesn't mean the tune is bad, just the pumps.

xcusem3 · 12-08-2015, 12:12 PM

Quote:

Originally Posted by csu87

Well yeah if you have weak fuel pumps then tuning will expose them. Doesn't mean the tune is bad, just the pumps.

All signs are pointing to a lpfp replacement i'm thinking

ArcticRik · 02-20-2017, 03:47 PM

I just got the shadow code 2FDB on my MHD tuner. Wondering if anyone found a fix for this? Im not getting long cranks or any sign for the HPFP going out

seccsc · 02-26-2017, 02:32 PM

Quote:

Originally Posted by ArcticRik

I just got the shadow code 2FDB on my mom tuned car. Wondering if anyone found a fix for this? Im not getting long cranks or any sign for the HPFP going out

I'm also getting this code also but no issues. I'm also tuned with MHDtuning. These are shadow codes. Don't worry about them.

sloweste9x · 07-23-2017, 12:52 AM

Anyone ever figure out what the cause was? Currently experiencing 2FDB and 30FF, guessing LPFP as HPFP was replaced under warranty.

NZ-M340ixDrive · 03-24-2018, 02:41 PM

Quote:

Originally Posted by mb21111

Anyone ever figure out what the cause was? Currently experiencing 2FDB and 30FF, guessing LPFP as HPFP was replaced under warranty.

Is the 2FDB anything to worry about I am getting this code?

12-01-2015, 09:48 PM	#23
m_fife First Lieutenant 123 Rep 339 Posts Drives: 2018 M5 Join Date: Jan 2013 Location: USA iTrader: (0)	Flash back to stock and see if they go away. I think they are flash related. I have the, when flash installed, but not when stock. __________________ 2018 Alpine White ///M5
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12-05-2015, 05:31 PM	#25
m_fife First Lieutenant 123 Rep 339 Posts Drives: 2018 M5 Join Date: Jan 2013 Location: USA iTrader: (0)	Correction: Flash to Stock..... Clear all codes.... Then see if they return. __________________ 2018 Alpine White ///M5
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12-08-2015, 11:59 AM	#26
xcusem3 Lieutenant 457 Rep 539 Posts Drives: 2013 M3 Join Date: Jan 2015 Location: Calgary iTrader: (0)	It's been a couple days, codes have not returned yet. I can't seem to feel the power surges as much as before but I suspect most of that is because the car just doesn't pull as hard as it did when it's running 20+psi. I guess I'll wait and see if the codes return.
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12-08-2015, 12:07 PM	#27
csu87 Banned 2134 Rep 3,554 Posts Drives: 09 335xi Join Date: Nov 2013 Location: Northern Colorado iTrader: (0)	Well yeah if you have weak fuel pumps then tuning will expose them. Doesn't mean the tune is bad, just the pumps.
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02-20-2017, 03:47 PM	#29
ArcticRik Enthusiast 167 Rep 1,622 Posts Drives: Arctic Metallic E90 335i Join Date: Jan 2011 Location: Orlando iTrader: (11)	I just got the shadow code 2FDB on my MHD tuner. Wondering if anyone found a fix for this? Im not getting long cranks or any sign for the HPFP going out
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07-23-2017, 12:52 AM	#31
sloweste9x Second Lieutenant 77 Rep 275 Posts Drives: E61 535XI, E92 335I (Sold) Join Date: Jun 2015 Location: earth iTrader: (0) Garage List 2006 BMW 530XI Wagon [0.00] 2016 BMW X1 [0.00] 2008 535XI Wagon [0.00]	Anyone ever figure out what the cause was? Currently experiencing 2FDB and 30FF, guessing LPFP as HPFP was replaced under warranty.
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