[335e92tx]

Originally Posted by asarang

Hi guys, I've been looking at alot of the logs on the thread and trying to learn how to read them. I posted my log below, and from what I can see I have a boost leak and it looks like my spark plugs may need to be changed as well. Currently im running the MHD stage 1 tune stock with 91 oct on a e93 n55 335i. I have a upgraded CP and muffler delete and thats about it in terms of modifications.

https://datazap.me/u/asarang/log-151...&data=0-3-4-16

Sorry can't help. Not familar with N55s.. different logging. But yes, pretty good delta on boost target and actual.

[I6TT]

https://datazap.me/u/hazem3/log-1517...19-21-22-23-24

Finally found some e85 in my city. This is OTS v8 e50 map. Please chime in.

[335e92tx]

Originally Posted by I6TT

https://datazap.me/u/hazem3/log-1517...19-21-22-23-24

Finally found some e85 in my city. This is OTS v8 e50 map. Please chime in.

Your city must be at about 3200 feet - bc you have a baro reading of 13.0
Your higher than midland thats for sure- its only 2700. You in Marfa/Alpine/Ft Davis area?


https://www.mide.com/pages/air-press...ude-calculator
3000 0.57 914 90.8 0.90 13.17
3500 0.66 1067 89.1 0.8812.93


edit - Ah, a Red-Raider I'm thinkin

https://en.wikipedia.org/wiki/Lubbock,_Texas
Elevation 3,256 ft (992.4 m)
;-)

And all kinds a stuff are dependent on that.

To start, that is probably why you are not hitting boost target. Pretty good delta between target and mean. But, considering what the WG-DCs are, you cant' drive them much harder. You also still have some adaption going on Im thinking. The Short term trims are pulling fuel pretty high.

I would give it another half a tank of driving time and then log again. A custom tune might help for you considering the altitude. But I dont know that it can do much- those DCs are really high.

Things are a little better post shift. Only slight retards on cyls 1 and 2.

Boost a little closer to target. Dont spin it over 6000, shift at 6000 at most.

What age is this n54 - as in miles?

[I6TT]

Thank you. I'm in Amarillo (N. Texas)
Car has 135K miles

[poptart56]

Mmkay so here's another one.

I just installed BMS DCI and new coil.

She's running great now. I decided to try stage 1+ and definitely will only be doing short pulls after IAT's. But she's savage at that psi. Good thing for cool NorCal mornings.

While installing I think I found my small boost leak. Rear DV I believe is the culprit. Also if anyone could chime in on the 18.5psi boost spike?

https://datazap.me/u/poptart56/new-d...og=0&data=3-24

[335e92tx]

Originally Posted by poptart56

Mmkay so here's another one.

I just installed BMS DCI and new coil.

She's running great now. I decided to try stage 1+ and definitely will only be doing short pulls after IAT's. But she's savage at that psi. Good thing for cool NorCal mornings.

While installing I think I found my small boost leak. Rear DV I believe is the culprit. Also if anyone could chime in on the 18.5psi boost spike?

https://datazap.me/u/poptart56/new-d...og=0&data=3-24

ACtually, its not that unsual. You had just shifted into 5th a few secs prior (time stamp 13.7) and it was pretty close to load target already. So when it hit the load from the next gear it put it over target and DME said it needed to close throttle a little, and that caused the boost to spike a bit.

[poptart56]

Alright awesome. Makes me feel better nothings wrong. Think I'll button her up for now with stage 1 and focus on maintenance for the time being. Oil change(still waiting for my appt at Valley BMW), coolant flush, brake fluid flush, new brake sensors, ugh and a walnut blast. I know she needs it but I hate parting with my money haha.

Thanks guys!! Will def be back with new FMIC, CP, catless DP's, NGK's. For a nice stage 2 car. Meth and ethanol will be much later.

[hellokitty]

Originally Posted by I6TT

https://datazap.me/u/hazem3/log-1517...19-21-22-23-24

Finally found some e85 in my city. This is OTS v8 e50 map. Please chime in.

Looks pretty healthy to me. You are definitely working those turbos at over 90% WGDC near redline

[Chrisavick]

[QUOTE=335e92tx;22730293]Yeah bud, not a lot there (head out to the keys to make a pull ;-) ). /QUOTE]

Appreciate you looking into them and I wish lmao! Trying to find quiet areas in south FL to make pulls can be a pain...

I switched back to the basic stage 1 to see if that helps with my IAT but still seem to be pulling into the 130's... not sure what to do about that at this point (waiting on funds or a used VRSF 7" IC to pop up)

Cyl1 is having some pretty big timing corrections? No clue what could be causing it except maybe a bad coil or something?

How's everything else looking?

(two logs on this one)
https://datazap.me/u/chrisavick/log-...og=1&data=3-23

[335e92tx]

Originally Posted by Chrisavick

Appreciate you looking into them and I wish lmao! Trying to find quiet areas in south FL to make pulls can be a pain...

I switched back to the basic stage 1 to see if that helps with my IAT but still seem to be pulling into the 130's... not sure what to do about that at this point (waiting on funds or a used VRSF 7" IC to pop up)

Cyl1 is having some pretty big timing corrections? No clue what could be causing it except maybe a bad coil or something?

How's everything else looking?

(two logs on this one)
https://datazap.me/u/chrisavick/log-...og=1&data=3-23

Corrections that tend to commonly show up on just one cyl usually arnt' hardware related (at least not hardware you can do much about). Missfires will sometimes show some improvement by moving plugs and coils but probably not retards. Usually its middle cyls bc they can run hotter. But since you got it on #1 it might just have a little more oil that gets in that chamber and that can put it closer to the edge.

So any specific reason you are using the V7 maps?
A version 8 map will likely give a little better performance. Since you're at sealevel some other things wont payoff much for v8s but I would try them anyway.

edit
I guess they are still called beta. Based everything I see, I would think they would be going production soon. Hasn't it been about 2 months in beta?

[Chrisavick]

Originally Posted by 335e92tx

Corrections that tend to commonly show up on just one cyl usually arnt' hardware related (at least not hardware you can do much about). Missfires will sometimes show some improvement by moving plugs and coils but probably not retards. Usually its middle cyls bc they can run hotter. But since you got it on #1 it might just have a little more oil that gets in that chamber and that can put it closer to the edge.

So doesn't sound like there's much I can do about it? How about my boost levels? Seems low for the low/mid range. Also developed this whooshing noise one day on the drivers side that's made me think ive had a boost leak.

[tan_rich]

Did a log off cold start then went to the freeway. The LTFT look definitely too high and will prob throw an code if i drove it any longer.
https://datazap.me/u/tanrich/log-151...20-21-24-25-26

[335e92tx]

Originally Posted by Chrisavick

So doesn't sound like there's much I can do about it? How about my boost levels? Seems low for the low/mid range. Also developed this whooshing noise one day on the drivers side that's made me think ive had a boost leak.

for S1 maps they are rarely above 12psi. The v8s might give a little more. But you will really need S1+ or s2 to get in the 15+ range.

[RSL]

Originally Posted by tan_rich

cmurphy335e92 @RSL

Did a log off cold start then went to the freeway. The LTFT look definitely too high and will prob throw an code if i drove it any longer.
https://datazap.me/u/tanrich/log-151...20-21-24-25-26

Your car is killing me lol Good news is, the 2/3/18 logs you just uploaded have the trims tracking together, so even though they are high, it's not a bank-to-bank problem.

I have dug through all of your logs and you've had a 20-25% swing in STFTs forever in the same spot. Sometimes started negative, so only got up to +15% or so. MAF seems to have increased lower, which is normally boost, VANOS, boost request offset, IATs, etc., but might be why they are starting higher now. Did you ever log on the stock bin (didn't see any)? Did you back up that rom before flashing MHD OTS? I'd be real curious to see a log on the actual stock OEM bin or stage 0 if the stock bin isn't available.

I noticed on your cold start log that the HPFP doesn't drop the same as mine at the max cold HPFP table limit of 105F. It does drop there, but barely. Mine goes to ~700psi at 105F, yours doesn't until the 120F ECT trigger point. I'm not sure what to make of that, but there are all kinds of offsets for cold/heating modes, so maybe that's normal for your car/environment. I need to log that again sometime with fuel mode logged and see if it's an actually separate mode or just different table targets. HPFP looks pretty normal everywhere else.

[tan_rich]

Originally Posted by RSL

Your car is killing me lol Good news is, the 2/3/18 logs you just uploaded have the trims tracking together, so even though they are high, it's not a bank-to-bank problem.

I have dug through all of your logs and you've had a 20-25% swing in STFTs forever in the same spot. Sometimes started negative, so only got up to +15% or so. MAF seems to have increased lower, which is normally boost, VANOS, boost request offset, IATs, etc., but might be why they are starting higher now. Did you ever log on the stock bin (didn't see any)? Did you back up that rom before flashing MHD OTS? I'd be real curious to see a log on the actual stock OEM bin or stage 0 if the stock bin isn't available.

I noticed on your cold start log that the HPFP doesn't drop the same as mine at the max cold HPFP table limit of 105F. It does drop there, but barely. Mine goes to ~700psi at 105F, yours doesn't until the 120F ECT trigger point. I'm not sure what to make of that, but there are all kinds of offsets for cold/heating modes, so maybe that's normal for your car/environment. I need to log that again sometime with fuel mode logged and see if it's an actually separate mode or just different table targets. HPFP looks pretty normal everywhere else.

LOL tell me about it. Its literally keep me up at night researching things. BUT maybe my research has final turned into fruition. One thing i must say is thanks to you RSL and 335e92tx for helping me with all this. I actually learned a lot from you guys and can read these logs to a certain extent now.

Funny that you mention it not being a bank to bank problem. Upon further research i came across vacuum leaks and how they affect fuel trims. Correct me if i wrong but it seems to make sense, when i am idle, cruising, partial throttle, or WOT shift, the engine would be in a state of vacuum. This would make sense with why I am running lean then. Since a vacuum leak seems would make me run lean in general and all the locations i'm running lean in seem to point towards when i'm in vacuum. So guess ill be checking all my vacuum lines like i suggested some to do earlier !.
Thought the only thing is my boost control seems to good so thats the only thing keep away the vacuum leak. Then only thing I can suspect is valve cover gasket, pcv, or injectors.

I dont recall ever doing a log on my stock oem bin however would i even be able to run the stage 0 map with downpipes? If i do i'm expecting a christmas tree on my dash lol...

Hmm, regarding the HPFP issue maybe its due to crappy california 91 gas? I wouldnt be surprised to associate a plethora of issues to california gas..... What is ECT trigger point?

Im also surprised at how you saw my recent datalogs before i even posted them haha. Stalking skill +10
https://datazap.me/u/tanrich/log-151...og=0&data=3-24

Also would you say these plugs are running rich or lean?

[335e92tx]

Originally Posted by tan_rich

LOL tell me about it. Its literally keep me up at night researching things. BUT maybe my research has final turned into fruition. One thing i must say is thanks to you RSL and 335e92tx for helping me with all this. I actually learned a lot from you guys and can read these logs to a certain extent now.

Funny that you mention it not being a bank to bank problem. Upon further research i came across vacuum leaks and how they affect fuel trims. Correct me if i wrong but it seems to make sense, when i am idle, cruising, partial throttle, or WOT shift, the engine would be in a state of vacuum. This would make sense with why I am running lean then. Since a vacuum leak seems would make me run lean in general and all the locations i'm running lean in seem to point towards when i'm in vacuum. So guess ill be checking all my vacuum lines like i suggested some to do earlier !.
Thought the only thing is my boost control seems to good so thats the only thing keep away the vacuum leak. Then only thing I can suspect is valve cover gasket, pcv, or injectors.

I dont recall ever doing a log on my stock oem bin however would i even be able to run the stage 0 map with downpipes? If i do i'm expecting a christmas tree on my dash lol...

Hmm, regarding the HPFP issue maybe its due to crappy california 91 gas? I wouldnt be surprised to associate a plethora of issues to california gas..... What is ECT trigger point?

Im also surprised at how you saw my recent datalogs before i even posted them haha. Stalking skill +10
https://datazap.me/u/tanrich/log-151...og=0&data=3-24

Also would you say these plugs are running rich or lean?

Remember the vacuum on an n54 is pump driven for Boost sels and even brakes. Only thing that could be allowing air in is PCV area. If you have an airleak at the VC it will surge under steady state throttle more than anything else.

[tan_rich]

Originally Posted by 335e92tx

Remember the vacuum on an n54 is pump driven for Boost sels and even brakes. Only thing that could be allowing air in is PCV area. If you have an airleak at the VC it will surge under steady state throttle more than anything else.

Hmm i see, then the only thing i can think of now is maybe my injectors are lazy?

[RSL]

+1. Air leak crossed my mind, as did MAP sensor (fuel/air mass calcs), but put that on the back burner.

There are literally like 10 HPFP tables, maybe more. Many aren't used, but there are generally multiple tables/values targeted for different functions depending on engine/environment states/modes. There can be one or many conditions for the DME to look up from one table instead of another and there are tons of different operations going on at the same time.

For my INA0S, there is a stock maximum cold HPFP table condition of 105F ECT...should switch off targeting that table at that temp and yours probably does, but where ever it's moving to, it remains higher than mine until it reaches the minimum normal HPFP operation table temp of 120F ECT. Pressures look the same as mine, yours just moves at noticeably different ECTs than mine does. Either way, at 120F ECT, it's clearly on the normal HPFP target table in the low range.

Don't need links to the individual maps, I was going through your logs directly on datazap and they popped up while I was working through them.

Hard to tell from the pics, but the plugs look OK. Top 2 look like good used plugs, bottom almost looks very new (very white insulator tip).

I'm still leaning towards some sensor, but injectors are always possibility for lots of things.

Stage 0 will be fine. If they have the cat codes disabled in that too and require the flash time option, just flash stage 0 and DON'T select the stock DP option. That will keep the efficiency codes disabled and you should have no CEL light from catless. While you're in the flash time options, make sure you don't have the 3.5 or 4 bar MAP options selected if you still have the stock TMAP sensor in the charge pipe.

[tan_rich]

Originally Posted by RSL

+1. Air leak crossed my mind, as did MAP sensor (fuel/air mass calcs), but put that on the back burner.

There are literally like 10 HPFP tables, maybe more. Many aren't used, but there are generally multiple tables/values targeted for different functions depending on engine/environment states/modes. There can be one or many conditions for the DME to look up from one table instead of another and there are tons of different operations going on at the same time.

For my INA0S, there is a stock maximum cold HPFP table condition of 105F ECT...should switch off targeting that table at that temp and yours probably does, but where ever it's moving to, it remains higher than mine until it reaches the minimum normal HPFP operation table temp of 120F ECT. Pressures look the same as mine, yours just moves at noticeably different ECTs than mine does. Either way, at 120F ECT, it's clearly on the normal HPFP target table in the low range.

Don't need links to the individual maps, I was going through your logs directly on datazap and they popped up while I was working through them.

Hard to tell from the pics, but the plugs look OK. Top 2 look like good used plugs, bottom almost looks very new (very white insulator tip).

I'm still leaning towards some sensor, but injectors are always possibility for lots of things.

Stage 0 will be fine. If they have the cat codes disabled in that too and require the flash time option, just flash stage 0 and DON'T select the stock DP option. That will keep the efficiency codes disabled and you should have no CEL light from catless. While you're in the flash time options, make sure you don't have the 3.5 or 4 bar MAP options selected if you still have the stock TMAP sensor in the charge pipe.

So i checked my vacuum lines and did not see anything noticeable. However when i blew into the vacuum connect above the alternator i couldnt hold a solid breath. It would slowly seep out over time but that would make sense the vacuum does disappear over time anyways.

Regarding the HPFP ECT, i did do a adaptation reset for it a few weeks back when i did the first adaptation reset for everything.

The plugs are all the same, replaced them 2 months ago as with coils packs.

Ill pull the sensors right now then flash the stage 0 map later today and see how it goes.

[RSL]

After you drive and park, wait about 15 minutes and pull the big vacuum line in front of the air box, should still get a whoosh if vacuum is solid. Other than that, would really need to go over all vacuum lines closely and do an intake pressure test.

Reset wouldn't change the HPFP values. They are different fuel modes, so something may be superseding the temp change trigger on yours or causing different offsets to be in play. Mine goes 5-4-10-2 modes (2 is normal fueling). Initial start (5) pressure is pretty choppy, so may be different PID at cold start, possibly a different mode for warm starts also. Smooths out when it hits mode 4 and pressure stays high. Mode 10 was said to be start-up enrichment, but looks a little late for that. Hits at the 60 second mark, so probably timer base, and only lasts 5 secs. At 105F ECT every single time, my pressure drops to ~700psi and stays there (MHD logs 104->106F)

For the record: spool mode is 20, mode 15 is supposedly open loop and mode 6 is cat protection. There may be another for lean protection, I've seen both lean and rich triggers/deactivation points for component protection fueling in the rom.

That bottom plug appears really clean, what cyl/bank is it out of?

[tan_rich]

Originally Posted by RSL

After you drive and park, wait about 15 minutes and pull the big vacuum line in front of the air box, should still get a whoosh if vacuum is solid. Other than that, would really need to go over all vacuum lines closely and do an intake pressure test.

Reset wouldn't change the HPFP values. They are different fuel modes, so something may be superseding the temp change trigger on yours or causing different offsets to be in play. Mine goes 5-4-10-2 modes (2 is normal fueling). Initial start (5) pressure is pretty choppy, so may be different PID at cold start, possibly a different mode for warm starts also. Smooths out when it hits mode 4 and pressure stays high. Mode 10 was said to be start-up enrichment, but looks a little late for that. Hits at the 60 second mark, so probably timer base, and only lasts 5 secs. At 105F ECT every single time, my pressure drops to ~700psi and stays there (MHD logs 104->106F)

For the record: spool mode is 20, mode 15 is supposedly open loop and mode 6 is cat protection. There may be another for lean protection, I've seen both lean and rich triggers/deactivation points for component protection fueling in the rom.

That bottom plug appears really clean, what cyl/bank is it out of?

Did the vacuum test and it all appears to be good. I double checked the vacuum lines while replacing the bank 1 primary o2 sensor and it still seems them same.

Heres a few logs of cold start right after install the new o2 sensor and a long idle
https://datazap.me/u/tanrich/cold-st...og=0&data=3-24

Heres another log of a few wot after 3/4 of a bottle of techron fuel injector cleaner in, most likely wont do anything but doesnt hurt trying lol....
https://datazap.me/u/tanrich/right-a...og=1&data=3-24

Both banks seem to still go lean after the shift, but 14.5 doesnt seem too bad, definitely different than my previous ones before downpipes where they would still be somewhat rich.

The bottom plug is cylinder 3 if i recall correctly. While the first 2 pics of cylinder 1.

[RSL]

Not a really cold start (111F ECT), but HPFP stays high forever. Did you drive or blip the throttle at the end? HPFP didn't even fall down to normal pressure until you did that.

The problem with 14.5 after shift is when it's not trimming and running 14.5. It doesn't do anything or care if you're or 5psi or 25psi.