N54Tech.com - International Turbo Racing Discussion
(#1)
Old
Jezabelle Jezabelle is offline
New Member
 
Posts: 13
Join Date: Jul 2020
Car: 335xi
Default Missfire cylinder 6 - 09-19-2020, 11:03 AM

I've tryed new a new coil. Swaped cylinder 6 with 3 new injector on 6 and coded(old one didn't look bad but I had a brand new index to so I changed it all injectors are #12. Plugs switched 2steps colder. Car is fbo stock outlets and turbos jb4 with mhd backend flash stage 2 fuel it bucketless.
Only misfires over 6k on high boost if I target 16 after 6k it's fine e85 is about 50 mixed with 93
Attached Files
File Type: csv cylinder 6 misfire.csv (8.1 KB, 16 views)
Reply With Quote
(#2)
Old
Jezabelle Jezabelle is offline
New Member
 
Posts: 13
Join Date: Jul 2020
Car: 335xi
Default 09-19-2020, 02:14 PM

Here's another log. Doesn't seem to misfire Everytime I do a pull in 3rd but Everytime iam wide open shifting thru the gears it does...xhp stage 3 happens with padles or in sport mode,
Reply With Quote
(#3)
Old
Jezabelle Jezabelle is offline
New Member
 
Posts: 13
Join Date: Jul 2020
Car: 335xi
Default 09-19-2020, 02:16 PM

Sorry here's a 2 3 4 log misfire happens in 4th
Attached Files
File Type: csv P32_M6_R2_200919_1658.csv (34.2 KB, 14 views)
Reply With Quote
(#4)
Old
Jezabelle Jezabelle is offline
New Member
 
Posts: 13
Join Date: Jul 2020
Car: 335xi
Default 09-21-2020, 07:22 PM

Update: fol adapted to 90 changed to 75 ran out of gas with a quarter tank🤔 put 5 gal of 93 in n didn't have my cable to change the bef. The car seemed way more powerful with out e85 didn't log i only got on it twice but is there anything I can change to make it faster iam fbo everything but outlets on stock turbos?
Reply With Quote
(#5)
Old
beamerbrad beamerbrad is offline
New Member
 
Posts: 21
Join Date: Apr 2014
Car: bmw 335i n54
Default 09-22-2020, 11:29 AM

Probably dual mass flywheel on way out, that’s what happened with me, creates false knock when it gets warn and misfires start, if u Turn power up more you’ll get misfires on 5-4 cylinders to!
Reply With Quote
(#6)
Old
Jezabelle Jezabelle is offline
New Member
 
Posts: 13
Join Date: Jul 2020
Car: 335xi
Default 09-22-2020, 01:22 PM

On an auto car?
Reply With Quote
(#7)
Old
Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
Super Moderator
 
Posts: 8,476
Join Date: Apr 2014
Car: E92 335XI
Default 09-22-2020, 01:48 PM

What are the plugs gapped to?

Also the HPFP looks pretty stressed, do you feel any hesitation while accelerating?

I'd drop your ethanol content or lower boost.

Sounds like the car ran better with more 93, which supports my initial concern that their is too much e85, and the fueling cant support.


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.
Reply With Quote
(#8)
Old
Jezabelle Jezabelle is offline
New Member
 
Posts: 13
Join Date: Jul 2020
Car: 335xi
Default 09-22-2020, 04:14 PM

Plugs 2steps colder gaped to .020 my ethonol content was under 40 I usualy run 60 without hesitation or any trouble realy and I have a stage 2 bucketless lpfp...do you think my hpfp might be on the way out? What number should I be looking to hit on hpfp?
Reply With Quote
(#9)
Old
Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
Super Moderator
 
Posts: 8,476
Join Date: Apr 2014
Car: E92 335XI
Default 09-29-2020, 12:05 PM

Quote:
Originally Posted by Jezabelle
Plugs 2steps colder gaped to .020 my ethonol content was under 40 I usualy run 60 without hesitation or any trouble realy and I have a stage 2 bucketless lpfp...do you think my hpfp might be on the way out? What number should I be looking to hit on hpfp?
Ideally we don't want to see your HPFP value dip below 10


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.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2020, N54tech.com