[euro.step]

Finally got a chance to log some pulls, been running JB4 for a several months now with no BEF as of yet. Current upgrades are as follows:

5" FMI
Charge Pipe w/ BOV
3" ******* *********

Everything is stock. DCI's on order, patiently awaiting their arrival.

Logged two pulls under Map5 & Map1. Prior to installing **'s JB4 would hold Map5, now it reverts to Map4 four out of five times. Review and recommendation would be greatly appreciated....Cheers

191102_2139_FT_Map5_01.csv

191102_2139_FT_Map5_02.csv

191102_2139_FT_Map1_01.csv

191102_2139_FT_Map1_02.csv

[Bbelstad]

Originally Posted by euro.step

Finally got a chance to log some pulls, been running JB4 for a several months now with no BEF as of yet. Current upgrades are as follows:

5" FMI
Charge Pipe w/ BOV
3" ******* *********

Everything is stock. DCI's on order, patiently awaiting their arrival.

Logged two pulls under Map5 & Map1. Prior to installing **'s JB4 would hold Map5, now it reverts to Map4 four out of five times. Review and recommendation would be greatly appreciated....Cheers

Attachment 90931

Attachment 90932

Attachment 90933

Attachment 90934

Did you say you installed C-A-T less down ***** ? (Not sure why it block out the word "***", but it does). Maybe you knocked an 02 sensor or something when you installed them?
Reason your being kicked into MAP4 I believe is this: Your AFR is really lean (In my opinion, reading 15-16 and should be down between 11.5 - 12.5 under a WOT load, more fuel, less air) and your Trims are often stuck all the way at max with a value of 50 and they should be closer to 25 +/- 10 or so. Therefore, the ECU see's this lean event after about 2 full seconds, tries to add more fuel to richen up the mixture but can't (when trims are all the way up to 50, it's maxed out with no more headroom) therefore it pulls timing, drops the target boost and in this case it took your target to 8 immediately and kicked you into stock settings, MAP4. You can also see the ECU attempt to close the throttle without you taking your foot off the pedal (see RPM 4,800 range roughly, there's a partial closure on uploaded MAP 5 _02.)

Did it throw any codes? I also am running without a BEF and am waiting for a new cable as my attempt to load one failed (cable died one minute in, wiped ECU data but couldn't write new data) and rendered my car dead until I can attempt to re-flash again. However, I've never had this issue your experiencing to this degree but when I did have a small amount of high trims, raising my FOL setting from 70 to 80 fixed it. But I would guess that since this only started once you changed your ***'s it might have something to do with an O2 sensor.

Please know I'm only giving advice and could be completely wrong, but based on what I've seen in responses from the pro's, they would point out your high (maxed) trims at 50 and a lean condition. You may be able to change your FOL setting higher than 90 which is where it was set when you posted the logs, but I think you need to reduce fuel demand by other means and getting a pump back end flash may get you sorted out.

I'd read this on N54 tech as it talks about some of what you're experiencing and how to make changes to fix the issue.

Logging Parameters and their Meaning - N54Tech.com - International Turbo Racing Discussion

Hope it works out well. Enjoy the hell outta your car once BMS get's you sorted out. I know I will when mines back up and running!!

Brandon

[euro.step]

Yep c.a.t less down-p.i.p.e.s, not sure why it does that either, lol. But I definitely didn't damage the O2's...I actually replaced them with new ones since I would have them out.

As far as error codes go, it's been throwing a 29F3 since I got the car, but never triggered a service engine light (I'll be replacing the fuel pressure sensor and line when it arrives).

But since I installed the p.i.p.e.s it's now throwing a 29F4, 29F5 and 2DED. The 29F4/5 I get and I believe will be taken care of with a BEF, but the 2DED has me baffled.

[Bbelstad]

That's strange. How long till you can do a BEF? Might get things settled ...

[euro.step]

Looking to get one right away, as soon as I do some research on exactly what licenses I need to purchase.

[Dave @ BMS/Fuel-It!]

Your trims max- / force you lean.

Hence the map 4 / safety throw.

I’d load the BEF that should help with the trims / afr issue

[euro.step]

Originally Posted by Dave @ BMS/Fuel-It!

Your trims max- / force you lean.

Hence the map 4 / safety throw.

I’d load the BEF that should help with the trims / afr issue

Ok. If I understand correctly it would it be the: JB4_I8A0S_PUMP_USA and not the JB4_I8A0S_PUMP file, correct?

I have a E90 335i with a manufacturer date of 07.2007.

[euro.step]

I ended up loading the 'JB4_I8A0S_PUMP' file, and I could notice right away a smoother idle. Did a few pulls and this was the last one (w/ stock intake filter). AFR looks better and fuel trim didn't max out.

[Bbelstad]

Originally Posted by euro.step

I ended up loading the 'JB4_I8A0S_PUMP' file, and I could notice right away a smoother idle. Did a few pulls and this was the last one (w/ stock intake filter). AFR looks better and fuel trim didn't max out.

I'm having trouble since I loaded the JB4_I8A0S_PUMP_USA file and not the regular PUMP file. Figured the USA version was for gas specific in the states but maybe not. If I don't get sorted better tomorrow after Dave looks at my logs, I may just try the non USA file instead, can't hurt.

Your looking better for sure with that last log. Not so lean. However, enable 6-cyl timing in your JB4 setting. When looking at the log cyl 2-6 is blank, wasn't recorded. Once you do so, they'll want you to do another log. Figured I'd save you the time, if you can, do it tonight and repost it, they'll see it tomorrow morning you'd be a step further ahead in getting results.

Either way, looking better, that's a good sign your on your way. Curious if the USA file I loaded for the BEF was the right choice since I'm having timing/fueling issues now and it worked well for you......I may have to re-flash and take a midnight run for a new log now lol.

Brandon

[euro.step]

Originally Posted by Bbelstad

I'm having trouble since I loaded the JB4_I8A0S_PUMP_USA file and not the regular PUMP file. Figured the USA version was for gas specific in the states but maybe not. If I don't get sorted better tomorrow after Dave looks at my logs, I may just try the non USA file instead, can't hurt.

Your looking better for sure with that last log. Not so lean. However, enable 6-cyl timing in your JB4 setting. When looking at the log cyl 2-6 is blank, wasn't recorded. Once you do so, they'll want you to do another log. Figured I'd save you the time, if you can, do it tonight and repost it, they'll see it tomorrow morning you'd be a step further ahead in getting results.

Either way, looking better, that's a good sign your on your way. Curious if the USA file I loaded for the BEF was the right choice since I'm having timing/fueling issues now and it worked well for you......I may have to re-flash and take a midnight run for a new log now lol.

Brandon

So coincidentally I did one more pull to make sure the auto-tune was dialed in, and the infamous misfire surfaced on cylinder #4. I replaced the plugs back in Dec. and I know I haven't put 5k miles on them yet. So I'm going to order some new coils and some 2-step colder plugs to be safe, and try it again once I get them all swapped out.

I'm also going to look into enabling the 6-cyl timing...I thought I mirrored all the settings from the JB4 sticky thread, but I'm going to triple check. Thanks for the recommendations!

[Bbelstad]

Originally Posted by euro.step

So coincidentally I did one more pull to make sure the auto-tune was dialed in, and the infamous misfire surfaced on cylinder #4. I replaced the plugs back in Dec. and I know I haven't put 5k miles on them yet. So I'm going to order some new coils and some 2-step colder plugs to be safe, and try it again once I get them all swapped out.

I'm also going to look into enabling the 6-cyl timing...I thought I mirrored all the settings from the JB4 sticky thread, but I'm going to triple check. Thanks for the recommendations!

You bet. I don't think that the 6 cyl timing is included with the general set up. Something you either turn on or leave alone by entering the value for your corresponding DME. At least, I know I missed it with my "double checked" initial set up lol.

Good luck

[euro.step]

So...….a BEF, DCI install, coil replacement (Delphi), plug replacement (1-step), and a MUCH needed intake port cleaning later the car is back on the road. Did a couple logs, here is the last one...let me know what you think.

[Bbelstad]

Originally Posted by euro.step

So...….a BEF, DCI install, coil replacement (Delphi), plug replacement (1-step), and a MUCH needed intake port cleaning later the car is back on the road. Did a couple logs, here is the last one...let me know what you think.

Alright, you have boost!! I'm not an expert and those guys will see this log soon enough but as far as I can see things look good. You didn't get kicked to map 4 so that's a bonus.

You had ordered two step colder plugs I think in an earlier post, but said you have one step colder installed. Decided to just opt for the one step colder?

Your trims jumped up a bit over 40 around the 2,700 to 3K RPM mark but that's as it should be. You were lean at that point as well (about 15.5 to 16 AFR) so the fuel pump was adding fuel to richen things up (Lower the AFR). It did as it should and thus the AFR came down below the 14 and less mark and look good through the rest of the pull. Likewise, the trims started settling down as well to match (Working good, as they should). Looks good to me there. (Are you familiar with how trims work and how to read them on the log?) I don't want to explain something you already may know

What fuel are you running? Timing pulled in the early stage of the run but started climbing again. May just need to try a higher octane or adding some octane additive to see if timings change. I'd guess your running 91 octane with no additive. This may be normal for the fuel you ran though. The High Pressure Fuel Pump was also raising it's pressure hard in this same time frame, so again, may be exactly what it is supposed to be doing.

However, if the car felt good in this log, I'd say your on track and maybe even at the point where your happy leaving things as they are. Not sure how much power you want out of it. If you want more than your getting now, it's a never ending road to keep improving so be careful what you ask for lol!

What are your menu 11 and 12 set at on the steering wheel controls?

When you shift under boost, do you lose a lot of boost and have to keep it floored to build it back up again? Or does the boost stay up on target as you row through the gears?

Lastly, this is all just my opinion. Hope I don't steer you in the wrong direction but it's pretty straightforward with the log you provided. Hope the pro's say the same thing!

[Dave @ BMS/Fuel-It!]

Originally Posted by euro.step

So...….a BEF, DCI install, coil replacement (Delphi), plug replacement (1-step), and a MUCH needed intake port cleaning later the car is back on the road. Did a couple logs, here is the last one...let me know what you think.

This looked ok to me

Some timing corrections, but I’m assuming this was with 91-93 oct?

[euro.step]

Originally Posted by Dave @ BMS/Fuel-It!

This looked ok to me

Some timing corrections, but I’m assuming this was with 91-93 oct?

Yes, keeping the setup mild until I save up for a single turbo kit. Do you think a custom tune would be worth it right now?

[euro.step]

Originally Posted by Bbelstad

Alright, you have boost!! I'm not an expert and those guys will see this log soon enough but as far as I can see things look good. You didn't get kicked to map 4 so that's a bonus.

You had ordered two step colder plugs I think in an earlier post, but said you have one step colder installed. Decided to just opt for the one step colder?

Your trims jumped up a bit over 40 around the 2,700 to 3K RPM mark but that's as it should be. You were lean at that point as well (about 15.5 to 16 AFR) so the fuel pump was adding fuel to richen things up (Lower the AFR). It did as it should and thus the AFR came down below the 14 and less mark and look good through the rest of the pull. Likewise, the trims started settling down as well to match (Working good, as they should). Looks good to me there. (Are you familiar with how trims work and how to read them on the log?) I don't want to explain something you already may know

What fuel are you running? Timing pulled in the early stage of the run but started climbing again. May just need to try a higher octane or adding some octane additive to see if timings change. I'd guess your running 91 octane with no additive. This may be normal for the fuel you ran though. The High Pressure Fuel Pump was also raising it's pressure hard in this same time frame, so again, may be exactly what it is supposed to be doing.

However, if the car felt good in this log, I'd say your on track and maybe even at the point where your happy leaving things as they are. Not sure how much power you want out of it. If you want more than your getting now, it's a never ending road to keep improving so be careful what you ask for lol!

What are your menu 11 and 12 set at on the steering wheel controls?

When you shift under boost, do you lose a lot of boost and have to keep it floored to build it back up again? Or does the boost stay up on target as you row through the gears?

Lastly, this is all just my opinion. Hope I don't steer you in the wrong direction but it's pretty straightforward with the log you provided. Hope the pro's say the same thing!

Yeah, I intended to getting 2-step colder, but when I researched them I didn't think I would need an extra step for my current setup.

And no, I've not read up on how trims work just yet. But in general, I'm always grateful for some insight.

Yes...running 91-93 oct. at the moment. I know I'll need to upgrade my fuel pump(s) eventually, but I am leaning towards methanol injection. Just need to do some more research on it.

Overall, the car felt good...but I could tell during that log when it pulled timing. I took it to the drag strip last Sun. for Import Showdown, and made a decent pass (13.2 w/ radials). But I feel like it could have done high 12's with a better launch (auto trans).

I definitely want more power, nothing outrageous though...maybe something close to 600 whp, so I'm preparing my wallet to take that hit, lol.

And I think my menu 11 is at 2k, and menu 12 set at 2.4k.

[Dave @ BMS/Fuel-It!]

Originally Posted by euro.step

Yes, keeping the setup mild until I save up for a single turbo kit. Do you think a custom tune would be worth it right now?

If plans are to keep it mild- I’d save the $

[euro.step]

So now I'm getting a misfire code (29CF) on cylinder 3, but only from a cold start. I can definitely tell when it's happening, but goes away after it warms up a little. I logged my cold start this morning, hopefully it will give some indicator of what's going on.

[Dave @ BMS/Fuel-It!]

Let car sit overnight & pull that plug if it’s wet it’s likely an injector.

[euro.step]

Originally Posted by Dave @ BMS/Fuel-It!

Let car sit overnight & pull that plug if it’s wet it’s likely an injector.

When I saw your post, I was crap...those are gonna set me back, lol. But it made sense they would be the culprit, since I had just replace all coils and plugs, as well as cleaned the intake ports. And sure enough they were. Once I replaced the injectors, the misfire/rough idle during warm up went away...it's been crispy for the last several weeks. Thanks for you help.

That being said, I now have for sale a used set of Index-7 injectors, lol. Only one (cylinder 3) was a little leaky and would cause a misfire/rough idle during cold starts.

[Dave @ BMS/Fuel-It!]

Originally Posted by euro.step

When I saw your post, I was crap...those are gonna set me back, lol. But it made sense they would be the culprit, since I had just replace all coils and plugs, as well as cleaned the intake ports. And sure enough they were. Once I replaced the injectors, the misfire/rough idle during warm up went away...it's been crispy for the last several weeks. Thanks for you help.

That being said, I now have for sale a used set of Index-7 injectors, lol. Only one (cylinder 3) was a little leaky and would cause a misfire/rough idle during cold starts.

[euro.step]

Finally switch over to a single turbo setup (docrace 62mm).

Running 92/93 pump for now, so just looking to dial in the map 2 setting.

Logged two pulls today, map 2 feels fairly choppy tho, not sure why.

Seems like it's have a hard time trying to regulate boost...not sure.

I can go into more detail about my setup if need be.

But any help is greatly appreciated....cheers

[Dave @ BMS/Fuel-It!]

LPFP looks like it’s maxing out, touching into the 50s

[euro.step]

Originally Posted by Dave @ BMS/Fuel-It!

LPFP looks like it’s maxing out, touching into the 50s

Perfect...I get to spend even more money hahaha

Thanks for you help Dave. Upgrading fuel pump next....eventually, lol.

[Dave @ BMS/Fuel-It!]

Originally Posted by euro.step

Perfect...I get to spend even more money hahaha

Thanks for you help Dave. Upgrading fuel pump next....eventually, lol.

#n54life

Enjoy the rest of the week.