[Xradeon]

Hello guys, this is one of the first logs with my car.
https://datazap.me/u/xradeon/after-d...ta=3-4-5-13-20

I've just installed MHD stage 1 maps. I made a couple of logs before installing the burger DCI, maybe to few to make this statement, but the max IAT I observed without the DCI were about 160f. Then after I installed the DCI (and double checked my VRSF charge pipe joints looking for leaks) I see IAT reaching 205f..

Is that normal? I think I have a very obvious boost leak (in fact I think I can hear it) so that's next step for me, but the IAT seems too high when looking at the logs.

FYI I temporarily removed the engine plastic cover (I don't think it has something to do) and the ambient temp is about 77f. Also do you have any suggestions to start looking for boost leaks? I was thinking to get a boost leak tester kit..

Thanks!

[Saif2018]

Originally Posted by Xradeon

Hello guys, this is one of the first logs with my car.
https://datazap.me/u/xradeon/after-d...ta=3-4-5-13-20

I've just installed MHD stage 1 maps. I made a couple of logs before installing the burger DCI, maybe to few to make this statement, but the max IAT I observed without the DCI were about 160f. Then after I installed the DCI (and double checked my VRSF charge pipe joints looking for leaks) I see IAT reaching 205f..

Is that normal? I think I have a very obvious boost leak (in fact I think I can hear it) so that's next step for me, but the IAT seems too high when looking at the logs.

FYI I temporarily removed the engine plastic cover (I don't think it has something to do) and the ambient temp is about 77f. Also do you have any suggestions to start looking for boost leaks? I was thinking to get a boost leak tester kit..

Thanks!

That log is a bit all over the place,

Can you do a proper 3rd gear log. Turn DSC fully off, make sure it's safe, switch to M mode, bring the car upto 3rd gear, @ 2500rpm and go full throttle, keep your foot planted till the gear changes into 4th and after a few secs lift off.

Then post your log.

Also if you can do a log on stock map, then you can compare the differences to see.

Just for your info the stock intercooler is pretty crap, you will get High IAT's and timing corrections due to it.

I'm running stage 1 v7.1 which is a bit less aggressive than V9 maps.

205F is ridiculously high IAT.

You need to check your intercooler connection points, vacuum lines, vacuum cannisters and connection points, boost solenoids.

Those are common culprits for boost leaks, also check codes.

[Beisofmarko]

Replaced turbos last week, did some test pulls yesterday on mhd stage 2+ and
everything felt smooth except some overboosting due to upgraded turbos + inlets.
Today filled up with E50 Mix for the first time as planning to get custom tune
for ~E50 but after some driving to let blend get mixed i floored it on third
and got half engine light for the first time (missfires cyl 5 & 6).
Cleared codes and tried again and same thing.
What i'm looking at changing before going forward and getting custom tune?

https://datazap.me/u/beisofmarko/sta...og=0&data=3-21

Mods:
- Stage 2 hybrids
- Stage 2 LPFP
- VRSF 7" HD intercooler
- VRSF 3" catless dp's
- VRSF Chargepipe with oem dv's
- VRSF Inlets
- VRSF dci
- RB pcv valve
- Index 12 injectors
- OEM Plugs and coils last summer (do i need 1 or 2 step colder plugs?)
- Walnut blasted 10k miles ago
- 335is/550i clutch

Thanks!

[Saif2018]

Originally Posted by Beisofmarko

Replaced turbos last week, did some test pulls yesterday on mhd stage 2+ and
everything felt smooth except some overboosting due to upgraded turbos + inlets.
Today filled up with E50 Mix for the first time as planning to get custom tune
for ~E50 but after some driving to let blend get mixed i floored it on third
and got half engine light for the first time (missfires cyl 5 & 6).
Cleared codes and tried again and same thing.
What i'm looking at changing before going forward and getting custom tune?

https://datazap.me/u/beisofmarko/sta...og=0&data=3-21

Mods:
- Stage 2 hybrids
- Stage 2 LPFP
- VRSF 7" HD intercooler
- VRSF 3" catless dp's
- VRSF Chargepipe with oem dv's
- VRSF Inlets
- VRSF dci
- RB pcv valve
- Index 12 injectors
- OEM Plugs and coils last summer (do i need 1 or 2 step colder plugs?)
- Walnut blasted 10k miles ago
- 335is/550i clutch

Thanks!

You could swap plugs round to see if misfire follows, but since your running Hybrids, I'd say don't even bother.

Try swapping coils round though.

I'd replace them all for good measure with Eldor ones.

Delphi or Eldor Coils should be good for hybrid turbos.

Oem plugs won't handle Hybrids.

Go for 2 step colder plugs since you are running Hybrids as that's recommended for over 420whp+ from what I read.

[Beisofmarko]

Originally Posted by Saif2018

You could swap plugs round to see if misfire follows, but since your running Hybrids, I'd say don't even bother.

Try swapping coils round though.

I'd replace them all for good measure with Eldor ones.

Delhi or Eldor Coils should be good for hybrid turbos.

Oem plugs won't handle Hybrids.

Go for 2 step colder plugs since you are running Hybrids as that's recommended for over 420whp+ from what I read.

I'm pretty sure the coils i bought are eldors but i'll check that tomorrow
and try swapping them. Guess i'll order colder spark plugs then, NGK or Bosch.

Could my problem above be simple fix as colder plugs?
Those rail pressure dips to ~1000psi throws me off and i'm hoping
thats caused by something else than worn out hpfp.
I think its never went below 1600psi with pump gas..

[Saif2018]

Originally Posted by Beisofmarko

I'm pretty sure the coils i bought are eldors but i'll check that tomorrow
and try swapping them. Guess i'll order colder spark plugs then, NGK or Bosch.

Could my problem above be simple fix as colder plugs?
Those rail pressure dips to ~1000psi throws me off and i'm hoping
thats caused by something else than worn out hpfp.
I think its never went below 1600psi with pump gas..

Could be caused by plugs and coils. If you have Eldor Coils already, it's most likely your oem plugs.

Once you sort the misfire out, you should be able to see if HPFP is struggling or not.

Run pump gas, preferably 93ron at least, then do a log,

If it runs fine, I'd stick to pump gas and just get a custom tune.

[turbohugh]

Originally Posted by Beisofmarko

I'm pretty sure the coils i bought are eldors but i'll check that tomorrow
and try swapping them. Guess i'll order colder spark plugs then, NGK or Bosch.

Could my problem above be simple fix as colder plugs?
Those rail pressure dips to ~1000psi throws me off and i'm hoping
thats caused by something else than worn out hpfp.
I think its never went below 1600psi with pump gas..

I think the n55 stock plug is +1 colder for us. Try those.
If not go +2 colder and make sure you get a good gapping tool.
Im on +2 MHD with stock plugs but stock turbos' . On E30 I get 0 timing corrections [unless I have wheel spin then #5 pulls some timing].
I think it's the plugs you're running. Especially if they're older [my stock range plus are -5000 miles on them, I have some +1s ready but these are so new...]

Good luck hope you figure out the issue.

[gavin_0108]

https://datazap.me/u/oiamo123/log-15...og=0&data=3-20

Recently put some e30 in. Shes running a little rich and I thinks it's just because the e30 hasn't quite hit the motor yet.

I'm at 3500 feet and the car has 180 000 kms on it as well.

Mods:
Vrsf Chargepipe w/ tial bov
VRSF catless downpipes
CTS fmic
BMS dci
MHD Stage 2+ E30 on CAD94
2 step colder plugs gapped to 0.022/oem coils

Thanks 👍

[Saif2018]

Originally Posted by gavin_0108

https://datazap.me/u/oiamo123/log-15...og=0&data=3-20

Recently put some e30 in. Shes running a little rich and I thinks it's just because the e30 hasn't quite hit the motor yet.

I'm at 3500 feet and the car has 180 000 kms on it as well.

Mods:
Vrsf Chargepipe w/ tial bov
VRSF catless downpipes
CTS fmic
BMS dci
MHD Stage 2+ E30 on CAD94
2 step colder plugs gapped to 0.022/oem coils

Thanks 👍

Looks fine.

I don't know how much of a difference E30 will make to be honest.

[Avrro]

Hi, please take a peek at my log.

https://datazap.me/u/avrro/fbo-defau...og=0&data=3-22

Default MHD channels selected:
- 101,000km 2007 335i M/T RWD N54 sport package and PPK,
- V8.0 Stage 2+ (93Oct), Option set to less rattle,
- Stock turbos, Walnut blasted at 94,000km,
- Husky 94oct fuel (up to 10% ethanol content),
- No DME codes,
- 800' above sea level, 20°C ambient temperature,
- VRSF 3" Catless downpipes, VRSF 7"HD intercooler, VRSF aluminum chargepipe with OEM DV's,
- OEM injectors, ignition coils, air intake,
- RB pcv, NGK 95770 plugs - gapped .022

Notes: Leaking injector? (Bank1), Small boost or vacuum leak? (no 30FF code), Wastegate issue?

Thanks in advance

[Saif2018]

Originally Posted by Avrro

Hi, please take a peek at my log.

https://datazap.me/u/avrro/fbo-defau...og=0&data=3-22

Default MHD channels selected:
- 101,000km 2007 335i M/T RWD N54 sport package and PPK,
- V8.0 Stage 2+ (93Oct), Option set to less rattle,
- Stock turbos, Walnut blasted at 94,000km,
- Husky 94oct fuel (up to 10% ethanol content),
- No DME codes,
- 800' above sea level, 20°C ambient temperature,
- VRSF 3" Catless downpipes, VRSF 7"HD intercooler, VRSF aluminum chargepipe with OEM DV's,
- OEM injectors, ignition coils, air intake,
- RB pcv, NGK 95770 plugs - gapped .022

Notes: Leaking injector? (Bank1), Small boost or vacuum leak? (no 30FF code), Wastegate issue?

Thanks in advance

Try V9 maps,

V8 Has been reported by some to have issues.

Also have all the vacuum lines been replaced?

Vacuum cannisters and connection points can crack, so they need to be checked top and bottom.

Check all intercooler and charge pipe connection points all secure and no cracks on plastic bits.

Next would check Solenoids,

What makes you think an injector is leaking?

[Avrro]

Originally Posted by Saif2018

Try V9 maps,

V8 Has been reported by some to have issues.

Also have all the vacuum lines been replaced?

Vacuum cannisters and connection points can crack, so they need to be checked top and bottom.

Check all intercooler and charge pipe connection points all secure and no cracks on plastic bits.

Next would check Solenoids,

Thanks for the input. The vacuum lines are something I will address soon as they are surely past their prime. Also, I will try V9 again. I tried it about a month ago but had issues with oscillations in the higher gears and reverted back to V8. Maybe adaptation time?

Originally Posted by Saif2018

What makes you think an injector is leaking?

I noticed that after the pull, Lambda Bank 1 AFR was slower to return to 234.95 than Bank 2.

[Saif2018]

Originally Posted by Avrro

Thanks for the input. The vacuum lines are something I will address soon as they are surely past their prime. Also, I will try V9 again. I tried it about a month ago but had issues with oscillations in the higher gears and reverted back to V8. Maybe adaptation time?

I noticed that after the pull, Lambda Bank 1 AFR was slower to return to 234.95 than Bank 2.

Could be you didn't give enough time for V9 to adapt,

If you have still have problems with V9 after giving it sufficient time to adapt,

then I suggest V7.1, I'm running it without any issues.

You've got to replace the vacuum lines man, the heat causes the lines to swell and even crack or split after years of use.

They aren't the expensive but make sure you replace all of them.

AFR should hopefully sort themselves out after a while, you have to give the DME time to adapt from what I understand after flashing the map.

[Avrro]

Originally Posted by Saif2018

Could be you didn't give enough time for V9 to adapt,

If you have still have problems with V9 after giving it sufficient time to adapt,

then I suggest V7.1, I'm running it without any issues.

You've got to replace the vacuum lines man, the heat causes the lines to swell and even crack or split after years of use.

They aren't the expensive but make sure you replace all of them.

AFR should hopefully sort themselves out after a while, you have to give the DME time to adapt from what I understand after flashing the map.

I'll try V9 this week and give it a few hundred kilometers to sort itself out.

I'd suspect these vacuum lines might be collapsing given their age and thermal cycles.
They'll be swapped out for new line soon, followed by some new logs.
I can imagine the lines leading down to the wastegates are the least fun to access.

Cheers

[gavin_0108]

Originally Posted by Saif2018

Looks fine.

I don't know how much of a difference E30 will make to be honest.

She's hitting 18.6psi now haha so she seems to have liked it. Good to know though. Thanks 👍

[Saif2018]

Originally Posted by gavin_0108

She's hitting 18.6psi now haha so she seems to have liked it. Good to know though. Thanks 👍

[Beisofmarko]

Originally Posted by Beisofmarko

Replaced turbos last week, did some test pulls yesterday on mhd stage 2+ and
everything felt smooth except some overboosting due to upgraded turbos + inlets.
Today filled up with E50 Mix for the first time as planning to get custom tune
for ~E50 but after some driving to let blend get mixed i floored it on third
and got half engine light for the first time (missfires cyl 5 & 6).
Cleared codes and tried again and same thing.
What i'm looking at changing before going forward and getting custom tune?

https://datazap.me/u/beisofmarko/sta...og=0&data=3-21

Mods:
- Stage 2 hybrids
- Stage 2 LPFP
- VRSF 7" HD intercooler
- VRSF 3" catless dp's
- VRSF Chargepipe with oem dv's
- VRSF Inlets
- VRSF dci
- RB pcv valve
- Index 12 injectors
- OEM Plugs and coils last summer (do i need 1 or 2 step colder plugs?)
- Walnut blasted 10k miles ago
- 335is/550i clutch

Thanks!

Replaced oem plugs with NGK 97506 2-step colder (gapped at 0,022") and swapped coils, didn't solve my issue.
Still getting missfires 99% of the time i WOT at third, mostly cyl 5 & 6, but also on cyl 3 once.
What in my car doesn't like E50, do i NEED to lower ethanol% or what could be the culprit?
Does this seem to be fueling problem? I see all kind of wierd curves but i'm no expert
so i let someone more qualified to interpret.

3rd WOT, half engine light + missfires cyl 3 & 6
https://datazap.me/u/beisofmarko/3rd...og=0&data=3-23

3rd WOT, no engine light this time but i can feel and hear some missfiring
https://datazap.me/u/beisofmarko/3rd...og=0&data=3-23

Thanks beforehand!

[Silent9n54]

Originally Posted by Beisofmarko

Replaced oem plugs with NGK 97506 2-step colder (gapped at 0,022") and swapped coils, didn't solve my issue.
Still getting missfires 99% of the time i WOT at third, mostly cyl 5 & 6, but also on cyl 3 once.
What in my car doesn't like E50, do i NEED to lower ethanol% or what could be the culprit?
Does this seem to be fueling problem? I see all kind of wierd curves but i'm no expert
so i let someone more qualified to interpret.

3rd WOT, half engine light + missfires cyl 3 & 6
https://datazap.me/u/beisofmarko/3rd...og=0&data=3-23

3rd WOT, no engine light this time but i can feel and hear some missfiring
https://datazap.me/u/beisofmarko/3rd...og=0&data=3-23

Thanks beforehand!

Your rail pressure crashes HARD down to 500s which is dangerous territory for sure, ease off on the E85 content and see if it helps, also cyl 4 is pulling major timing, maybe coil is bad or you didnt gap the plugs right ? also your stft are maxing out at -30ish so thats another thing to look at. The car def is not ready for E50, try going down to E40 and see if there is any improvements. I would not go WOT again with rail going down to 500s, if you have mhd monitor the rail pressure and if it drops below 900-1000psi stop going wot. Also get a custom tune before you go stomping on it with OTS tunes.

[turbohugh]

Originally Posted by Silent11N54

Your rail pressure crashes HARD down to 500s which is dangerous territory for sure, ease off on the E85 content and see if it helps, also cyl 4 is pulling major timing, maybe coil is bad or you didnt gap the plugs right ? also your stft are maxing out at -30ish so thats another thing to look at. The car def is not ready for E50, try going down to E40 and see if there is any improvements. I would not go WOT again with rail going down to 500s, if you have mhd monitor the rail pressure and if it drops below 900-1000psi stop going wot. Also get a custom tune before you go stomping on it with OTS tunes.

I had similar issues when I had a cracked valve cover, it really took a major crap one winter morning when it was 20f .. Wondering what his vacuum reads at idle if measured at the oil cap. That was the test we did. Crack was very small near the oil separator / PCV area and lead to misfires on bank 2 [for me].

[Beisofmarko]

Originally Posted by Silent11N54

Your rail pressure crashes HARD down to 500s which is dangerous territory for sure, ease off on the E85 content and see if it helps, also cyl 4 is pulling major timing, maybe coil is bad or you didnt gap the plugs right ? also your stft are maxing out at -30ish so thats another thing to look at. The car def is not ready for E50, try going down to E40 and see if there is any improvements. I would not go WOT again with rail going down to 500s, if you have mhd monitor the rail pressure and if it drops below 900-1000psi stop going wot. Also get a custom tune before you go stomping on it with OTS tunes.

The reason why i'm running mhd stage 2+ OTS map is that i wanted to test
what kind of ethanol blend i could get by and then placing an order for custom tune.
Should i run my tank empty without doing pulls to get rid off then E50 and maybe try E30 next?
I can try swapping cyl 4 coil and see if timing pulls move along.
I gapped all plugs to 0,022" using proper tools for that, should i try gap them
to 0,020" instead as recommended on BMS site?
Also read that when using NGK plugs the "hook" should not be pointing to injectors,
but if this is true how do i affect to it's position as when i start to thread it and use specified torque,
it will stop at certain position?

Originally Posted by turbohugh

I had similar issues when I had a cracked valve cover, it really took a major crap one winter morning when it was 20f .. Wondering what his vacuum reads at idle if measured at the oil cap. That was the test we did. Crack was very small near the oil separator / PCV area and lead to misfires on bank 2 [for me].

How do you exatcly measure this, from the oil filler cap? what tools?
What should it read? I did replace VCG 2 weeks ago due to leak,
seems to hold now but maybe theres small crack on the cover?

[F13.KENN]

finally fixed my o2 sensor issue (cat sim wired in with stock dps) and replaced vacuum lines & boost solenoids

any comments on my log?

stock turbos, arm 5" intercooler, charge pipe & bov, stock downpipes, muffler delete, stock inlets & outlets, bms dci

160k miles, no wastegate rattle (that i can hear). no wastegate position adjustment with mhd

93 octane

v9.0 Stage 1+

https://datazap.me/u/schwarze92/v90-...og=0&data=3-21

[Saif2018]

Originally Posted by SCHWARZ_E92

finally fixed my o2 sensor issue (cat sim wired in with stock dps) and replaced vacuum lines & boost solenoids

any comments on my log?

stock turbos, arm 5" intercooler, charge pipe & bov, stock downpipes, muffler delete, stock inlets & outlets

160k miles, no wastegate rattle (that i can hear). no wastegate position adjustment with mhd

93 octane

v9.0 Stage 1+

https://datazap.me/u/schwarze92/v90-...og=0&data=3-21

Looks good, one cylinder timing correction during pull but its only about - 3 so that's fine.