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Default Help with JB4 Logs - 03-13-2015, 10:34 PM

Hi,

I'm not sure what to look for in the logs. I usually only look at the boost curve and it seems to overshoot.

Here is the car info:

-2008 BMW E90 335i sports package
-91 octane (occasionally I can put some E85)
-3" charge pipe, 3" n54Tuning ***
-Alpina B3 TCU flash
-BMS Pump Gas flash (latest one posted in 01/2015)
-JB4 ISO G5 28_5 (not 28_5b)
-Logs are using Map 5
-reduced the wastegate to 800rpm (16) because of wastegate rattle
-I am not running meth (although I noticed some values in the JB4 interface set for meth which I don't understand)

Attached are four logs.

First three logs (1604, 1607, 1611) are with JB4 4/3 set.
Last log (1615) is JB4 4/2 set.

You can see the boost curve goes up using 4/3 but not 4/2.

A addt'l questions:
Looking at the logs, are there any misfires in any of the cylinders?
Do you recommend 4/2 or 4/3 with BMS Pump Gas Flash or the new iso 28_5b?
Is Map 5 good or should I switch to Map 1 or Map 2?
Should I be using TunerPro to modified by stock bin file to match the BMS pump gas flash or just continue using the canned pump gas flash?

Thanks in advance!
Attached Images
   
Attached Files
File Type: csv 150222_1604.csv (12.7 KB, 204 views)
File Type: csv 150222_1607.csv (13.9 KB, 161 views)
File Type: csv 150222_1611.csv (10.3 KB, 156 views)
File Type: csv 150222_1615.csv (11.6 KB, 239 views)


2008 BMW 335i | JB4 G5 | BMS Pump Flash | 3" n54Tuning *** | 3" ER Charge Pipe | 5" ETS FMIC

Last edited by bmwsf; 03-13-2015 at 10:47 PM..
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Default 03-14-2015, 09:53 AM

AFR's do not indicate any misfires. Are you getting misfire codes?
Terry recommends using 4-3 with the flashes.
Just run the pump flash as is.
You really need a FMIC.
Also your default settings are not correct.
PID gain should be 25 and Auto Shift Boost Reduction should be 60. CPS7000 should be 4. FUB & FUE should be zero.


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Last edited by Russell @ BMS; 03-14-2015 at 09:59 AM..
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Default 03-14-2015, 09:04 PM

Thank you for the quick reply.

No misfire codes but wasn't sure if misfires or knocks would show up as a code. What would bad AFR values look like?

Any reason to recommend a FMIC? I know they are a good upgrade but not sure if it is necessary in San Francisco weather without tracking the car.

I'll set the default codes to your values.

I had FUB = 2 before because I ran into a 29F2 code. I guess it meant something else in the past or was I suppose to have FUB = 2 only for testing purposes?

I thought the other values were adaptive. Can you also explain or point me to an explanation of PID gain and auto shift boost reduction and why they should be set to 25 and 60 respectively? How did my PID gain get to 10 and auto shift reduction to 10? Was this bad for the engine/transmission?

If I do 25% E85 (4 gal. E85, 12 gal. 91 octane), is the PUMP gas backend flash still suitable?


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Default 03-15-2015, 10:47 AM

Misfire and knock will generate codes.
Read this: http://www.n54tech.com/forums/showthread.php?t=21269
With the flash FUB can be set to zero. I have no idea how those values got changed.
No not bad for the engine or transmission.
Yes you can use the pump flash on that E85 mix.
IAT over about 110 will hurt timing and limit power and boost. Your single gear pulls are over 130.


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Default 03-16-2015, 08:22 AM

Quote:
Originally Posted by bmwsf
Is Map 5 good or should I switch to Map 1 or Map 2?
Should I be using TunerPro to modified by stock bin file to match the BMS pump gas flash or just continue using the canned pump gas flash?
Map 2 is too aggressive on 91, if you are running some ethanol Map 2 can work, I found Map 5 to be a bit inconsistent.
You can do the tuner pro but only if you have issues with the generic flash file (which is very uncommon)
Quote:
Originally Posted by bmwsf
If I do 25% E85 (4 gal. E85, 12 gal. 91 octane), is the PUMP gas backend flash still suitable?
Pump flash is the way to go in this case, you will need at least E50 in order to run the race flash, which your stock fuel system will not support without a LPFP upgrade.


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Default 03-17-2015, 08:09 PM

Quote:
Originally Posted by CHECKERED
Map 2 is too aggressive on 91, if you are running some ethanol Map 2 can work, I found Map 5 to be a bit inconsistent.
You can do the tuner pro but only if you have issues with the generic flash file (which is very uncommon)
Pump flash is the way to go in this case, you will need at least E50 in order to run the race flash, which your stock fuel system will not support without a LPFP upgrade.
Thanks for the info!! Would you say 25% E85 is good enough to run Map 2?


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Default 03-17-2015, 08:11 PM

Quote:
Originally Posted by Russell @ BMS
Misfire and knock will generate codes.
Read this: http://www.n54tech.com/forums/showthread.php?t=21269
With the flash FUB can be set to zero. I have no idea how those values got changed.
No not bad for the engine or transmission.
Yes you can use the pump flash on that E85 mix.
IAT over about 110 will hurt timing and limit power and boost. Your single gear pulls are over 130.
Thanks for all the tips and the great link to your thread.

I'll take a look at the IAT values again. A year ago the IAT was around 110 but maybe the ambient temperature was lower. Also, I just had the M3 replica bumper installed and the license plate is blocking air flow to the FMIC.

Should I be running 28_5 or 28_5b?


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Default 03-17-2015, 08:17 PM

Quote:
Originally Posted by bmwsf
Thanks for the info!! Would you say 25% E85 is good enough to run Map 2?
try it and log...should be ok


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Default 03-18-2015, 07:58 AM

Quote:
Originally Posted by bmwsf
Thanks for all the tips and the great link to your thread.

I'll take a look at the IAT values again. A year ago the IAT was around 110 but maybe the ambient temperature was lower. Also, I just had the M3 replica bumper installed and the license plate is blocking air flow to the FMIC.

Should I be running 28_5 or 28_5b?
Probably 28_5b.


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Default 05-06-2015, 05:51 PM

Update, I am now installed a new 5" ETS FMIC per your suggestion and running a new ISO firmware version (I think 28_8 when I logged this). The turbos were also replaced because of a wastegate rattle. I have the latest BMS backend pump gas flash (4/2015) and have 4/2 set. I also fixed the parameters as mentioned earlier in this thread.

For this log I added 4 gallons of E85 but most of the time I just run 91 octane. How do things look now using map 5?


Info:
-2008 BMW E90 335i sports package
-91 octane (occasionally I can put some E85)
-now new ETS FMIC
-now new stock turbos
-3" charge pipe
-3" n54Tuning ***
-BMS Pump Gas flash (latest one posted in 04/2015)
-JB4 ISO G5 28_8
-Logs are using Map 5
Attached Files
File Type: csv 150420_1855.csv (6.9 KB, 128 views)
File Type: csv 150420_1929.csv (20.1 KB, 122 views)


2008 BMW 335i | JB4 G5 | BMS Pump Flash | 3" n54Tuning *** | 3" ER Charge Pipe | 5" ETS FMIC

Last edited by bmwsf; 05-06-2015 at 06:08 PM..
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Default 05-06-2015, 07:06 PM

update firmware to 28_9
could use more ethanol, try 5 gallons next time

did you turn off traction control during these logs? I see some throttle closures and timing drops...

otherwise looks OK


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Default 05-09-2015, 04:37 PM

Traction control was on but roads aren't the best and maybe time to replace tires.

Should I upgrade to iso 29 or stick with iso 28_9?


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Default 05-09-2015, 06:28 PM

Upgrade



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Default 05-17-2015, 02:26 AM

Quote:
Originally Posted by CHECKERED
update firmware to 28_9
could use more ethanol, try 5 gallons next time

did you turn off traction control during these logs? I see some throttle closures and timing drops...

otherwise looks OK
Where do I look for the timing drop? Is it the Ign Advance curve? If it's not traction related what should I do to fix it?


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Default 05-17-2015, 07:50 AM

Quote:
Originally Posted by bmwsf
Where do I look for the timing drop? Is it the Ign Advance curve?
under is Ign_2, Ign_3, Ign_4... columns, the numbers are raw timing advance
Quote:
Originally Posted by bmwsf
If it's not traction related what should I do to fix it?
more octane (more ethanol)


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Default 05-17-2015, 10:29 AM

Could it also be that I need new spark plugs?


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Default 05-17-2015, 11:17 AM

possible, how old are the plugs?
and what are they?


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Default 05-17-2015, 11:56 AM

The spark plugs are about 12k miles. They are: 6 Piece Set of Bosch OEM Spark Plug # 0242140507 / ZGR6STE2 - BMW # 12120037244

http://www.amazon.com/**/B00804F080/..._M3T1_ST1_**_1


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Default 05-17-2015, 12:26 PM

I would replace with NGK 5992/95770 and gap to 0.022"


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Default 05-19-2015, 01:57 AM

I will probably switch to those spark plugs next time I replace the spark plugs. Can they be bought already gapped to either 0.0275" or 0.022"?

Am I right in that I should be replacing oem spark plugs every 20-25k miles?

Would you recommend running map 1 instead of map 5 when on 100% 91 octane (I think map 1 would put less load on the engine)?

Lastly, 5 gallons of E85 is 5/16 or 30% E85, so hitting the limit for PUMP gas flash. Would using Turner Pro to edit my stock bin to backend flash specs help?


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Default 05-19-2015, 07:59 AM

Quote:
Originally Posted by bmwsf
I will probably switch to those spark plugs next time I replace the spark plugs. Can they be bought already gapped to either 0.0275" or 0.022"?
Nope, they all need to be re gapped
Quote:
Originally Posted by bmwsf
Am I right in that I should be replacing oem spark plugs every 20-25k miles?
on a tuned engine they won’t even last 10K

Quote:
Originally Posted by bmwsf
Would you recommend running map 1 instead of map 5 when on 100% 91 octane (I think map 1 would put less load on the engine)?
use map 1, not because of the load but because of the poor octane.
Quote:
Originally Posted by bmwsf
Lastly, 5 gallons of E85 is 5/16 or 30% E85, so hitting the limit for PUMP gas flash. Would using Turner Pro to edit my stock bin to backend flash specs help?
log to confirm, might need race flash


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Default 05-19-2015, 11:27 AM

Quote:
Originally Posted by bmwsf
Lastly, 5 gallons of E85 is 5/16 or 30% E85, so hitting the limit for PUMP gas flash. Would using Turner Pro to edit my stock bin to backend flash specs help?
Yes, if you don't want to run the race flash for some reason but want to run more ethanol bump your scalar up in the pump flash to about 1.15 or 1.2.
For reference the pump flash is 1.1, race flash is 1.15, E85 flash is 1.35, running full E85 usually requires about 1.45 or so to zero out the trims.



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Default 03-01-2016, 08:45 PM

Hi everyone

I need help! After a few days trying to figure out why I had no boost in my 335i I found out that the JB4 piggyback was the culprit. With the piggyback on we did not get vacuum going to the turbo wastegate actuator. As soon as I removed the piggyback the vacuum returned and boost was restored. What is strange is that I had not touched the piggyback or upgraded hex files for a long time. The loss of boost just happened one day while driving fast in the highway.

Could the piggyback have an electrical problem? Is there a way to fix the piggyback? I even have the new case to protect it from heat melting the plastic.

Should I try putting it back on? My concern is the problem will come back.

Also how bad is having the wastegates malfunction? Mechanic said oil was dirty. The exhaust was spitting quite a bit of carbon at cold start.

Thanks,
Sebastian


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Default 03-01-2016, 09:39 PM

I came across this posting with the same issue:

http://www.1addicts.com/forums/showt...7#post12623747

What does it mean to "cross the wastegate wires together in the harness?"


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Default 03-02-2016, 08:37 AM

If the wastegates aren't functioning properly or are sticking, it could cause over/under boost issues.

Post a picture of both sides of your JB4 board.



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