E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Low fuel pressure MDH log



Reply
 
Thread Tools Search this Thread
      09-20-2016, 05:42 PM   #1
Supra2k6
Lieutenant
132
Rep
573
Posts

Drives: 335i
Join Date: Dec 2013
Location: The District

iTrader: (1)

Low fuel pressure MDH log

can someone look over my log? i just replaced my lpfp with an oem unit. My old one was getting down to the high 30's 40's on map 2.

Looks like i'm at 70's with a low of 65 in some spots and slight timing corrections. can someone advice. Also it looks like i'm not reaching target psi can anyone shine some light on that i don't believe i have a boost leak.

thanks

http://www.datazap.me/u/supra2k6/sta...og=0&data=4-21

FBO, inlets, no IC.stage 2 aggressive map 93

Also i've been searching but i can't find the difference between new v5,v6,v7 maps?

Last edited by Supra2k6; 09-20-2016 at 06:18 PM..
Appreciate 1
pits200552.00
      09-20-2016, 05:51 PM   #2
CoffeeBean
Lieutenant
251
Rep
579
Posts

Drives: 2016 535i M-Sport
Join Date: Aug 2012
Location: USA

iTrader: (2)

Your URL got truncated.
Appreciate 0
      09-20-2016, 06:17 PM   #3
Supra2k6
Lieutenant
132
Rep
573
Posts

Drives: 335i
Join Date: Dec 2013
Location: The District

iTrader: (1)

updated

http://www.datazap.me/u/supra2k6/sta...og=0&data=4-21
Appreciate 0
      09-20-2016, 06:21 PM   #4
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3474
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Everything looks perfect. A dip or 2 in the 60's is no concern so as long as the average is near 70.

Best thing to do with maps is drive them, it's mostly feel. V7 seem to be the smoothest overall. V5 tend to be more aggressive on the punch and tip in but both are overall same power up top.

I do recommend staying with the latest maps but some people prefer the feel of older maps.
Appreciate 0
      09-20-2016, 07:20 PM   #5
Sgop335
Colonel
Sgop335's Avatar
United_States
669
Rep
2,080
Posts

Drives: 07 335i e92, 08 535i
Join Date: Jun 2014
Location: MD

iTrader: (1)

Quote:
Originally Posted by Jeff@TopGearSolutions View Post
Everything looks perfect. A dip or 2 in the 60's is no concern so as long as the average is near 70.

Best thing to do with maps is drive them, it's mostly feel. V7 seem to be the smoothest overall. V5 tend to be more aggressive on the punch and tip in but both are overall same power up top.

I do recommend staying with the latest maps but some people prefer the feel of older maps.
Everything looks perfect? Corrections galore esp, cyl1. Lpfp looks fine, also not meeting boost target.
__________________
335i e92 TPC 19Ts
Appreciate 1
      09-20-2016, 07:42 PM   #6
JasW
Captain
JasW's Avatar
255
Rep
554
Posts

Drives: 2013 335is E93 6MT
Join Date: Jul 2015
Location: South Florida

iTrader: (0)

Garage List
Quote:
Originally Posted by Supra2k6 View Post
You can band-aid those negative timing corrections with a couple three gallons of E85 at fill-up. And aside from boost being under target, you could really use an FMIC.
__________________
2013 335is E93 6MT | LeMans Blue/Saddle Brown
BQ Tuning MHD E60 flash | Cobb catted DPs | ETS 5" FMIC | BMS DCI | Fuel-It Stage 2 LPFP | MMP inlets/outlets | Forge DVs | N20 TMAP sensor
Vibrant 1790 resonators/mid-cat delete | MPI CP | Spec Stage 3+ clutch and steel SMFW | Wavetrac LSD | M3 rear subframe and diff bushings
Appreciate 0
      09-20-2016, 07:47 PM   #7
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3474
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Quote:
Originally Posted by Sgop335 View Post
Everything looks perfect? Corrections galore esp, cyl1. Lpfp looks fine, also not meeting boost target.
A few corrections are normal on pump gas and the LPFP looked fine.

As another member mentioned, unless you can splash in some E85, you'll be chasing your tail on a few corrections.
Appreciate 0
      09-20-2016, 07:54 PM   #8
Sgop335
Colonel
Sgop335's Avatar
United_States
669
Rep
2,080
Posts

Drives: 07 335i e92, 08 535i
Join Date: Jun 2014
Location: MD

iTrader: (1)

Quote:
Originally Posted by Jeff@TopGearSolutions View Post
A few corrections are normal on pump gas and the LPFP looked fine.

As another member mentioned, unless you can splash in some E85, you'll be chasing your tail on a few corrections.
Is cool, just not perfect and driving around w a correction of 6.
__________________
335i e92 TPC 19Ts
Appreciate 0
      09-20-2016, 08:01 PM   #9
JTswole83
Private
34
Rep
95
Posts

Drives: 335i
Join Date: Oct 2014
Location: Tampa, FL

iTrader: (0)

-7 is not good in the least. You have corrections on every cylinder. You need to use a less aggressive map or use e85 and fmic.
Appreciate 1
      09-20-2016, 10:07 PM   #10
Supra2k6
Lieutenant
132
Rep
573
Posts

Drives: 335i
Join Date: Dec 2013
Location: The District

iTrader: (1)

I saw my IAT's go up so yeah i really do need a FMIC but since its going to be winter here i was hold ing off on it.

I saw my corrections between 2-3 degrees is that bc of the IAT (keep in my i never do back to back pulls and usually wait for the car to cool less heatsoak.

I guess i'll switch to stage 2 91 oct map and pull if i'm pulling too much timing. I also feel the car is running rich.

Thanks everyone!
Appreciate 0
      09-21-2016, 12:22 AM   #11
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3474
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Quote:
Originally Posted by Sgop335 View Post
Is cool, just not perfect and driving around w a correction of 6.
It's weird that its only cylinder 1 for the most part, especially cause that's known to be the quietest cylinder.

Are the injectors, coil and plugs fairly new?
Appreciate 0
      09-21-2016, 10:58 AM   #12
Supra2k6
Lieutenant
132
Rep
573
Posts

Drives: 335i
Join Date: Dec 2013
Location: The District

iTrader: (1)

Quote:
Originally Posted by Jeff@TopGearSolutions View Post
It's weird that its only cylinder 1 for the most part, especially cause that's known to be the quietest cylinder.

Are the injectors, coil and plugs fairly new?
shell 93oct always

new NGK's gapped to .22

coils oem new

injectors came with the car so not sure of age but they're index 12 all 6

car has 60k miles

I also see i'm not meeting boost targets. Maybe i should replace boost solenoids from what i read there is an old and new version. I'll check my plugs this weekend and check the condition.

Last edited by Supra2k6; 09-21-2016 at 11:04 AM..
Appreciate 0
      09-21-2016, 11:45 AM   #13
ritzzzzzwik
Captain
ritzzzzzwik's Avatar
234
Rep
723
Posts

Drives: SO M4 MT
Join Date: Oct 2014
Location: NOVA

iTrader: (0)

Try with a milder tune, or with a few gals of e85. The corrections look ugly. Even Shell 93 oct isnt always the best quality. I've seen the quality vary quite a bit. That said, you should not be seeing that much correction.
__________________
2007 335i E92 MT | MFactory LSD | Diff Brace | MHD/Wedge Tuned| BL Coils | Stg2 lpfp BoostConcepts | VRSF DPs | VRSF 7" HD FMIC | DCI | VRSF CP | BMW SSK | Billstein PSS Coilovers | M3 Control Arms | Whiteline Rear SF Inserts | SS brake lines | Z4 35is Rotors | Hawk 5.0 pads | M219s + PSS | PE Mod -SOLD
2016 M4 F82 MT
Appreciate 0
      09-21-2016, 11:52 AM   #14
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3474
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Quote:
Originally Posted by Supra2k6 View Post
shell 93oct always

new NGK's gapped to .22

coils oem new

injectors came with the car so not sure of age but they're index 12 all 6

car has 60k miles

I also see i'm not meeting boost targets. Maybe i should replace boost solenoids from what i read there is an old and new version. I'll check my plugs this weekend and check the condition.
Yea at this point you need to see if it's octane related or not.

Go down a stage on the tune or get some E85 or race gas. Lots of guys forget race gas (100 octane unleaded) is a good band aid too, especially when E85 isn't available locally.
Appreciate 0
      09-21-2016, 02:16 PM   #15
FCobra94
Guest
0
Rep
n/a
Posts

Drives:


Quote:
Originally Posted by ritzzzzzwik View Post
Try with a milder tune, or with a few gals of e85. The corrections look ugly. Even Shell 93 oct isnt always the best quality. I've seen the quality vary quite a bit. That said, you should not be seeing that much correction.
Even with IATs that high?

Something tells me that if he wasn't ~30* over ambient, there wouldn't be nearly as many corrections; even with the same tank of fuel.
Appreciate 0
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 11:56 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST