Originally Posted by kulxio

I just installed a Walbro 450 in my car to be able to run E60, and wanted to make sure everything is all right before doing a custom tune.

The car seems to run fine on E40, but it looks like my high pressure pump doesn't like E60: https://datazap.me/u/kulixo/test-0?log=0&data=20
I'm thinking if this could be due to a bad connection at the LPFP? It seems to be doing decent, but drops to 56psi at the lowest point. I double checked the connections, and they seem to be fine.
Otherwise, is this something you can tune around? Since it's happening at what I'm guessing is peak torque, I'm more interested in high end power.

Here is a E40 log, where the HPFP is perfectly fine: https://datazap.me/u/kulixo/2019-2?log=0&data=19-20

Yeah dude, that's really really really bad.

I would start by updating MHD since there is no E60 map anymore. Run the newest E50 map instead and see what happens.

If everything with the LPFP checks out (hardware/installations wise) you might try swapping in another Fuel Pump Module to see if that makes a difference.

[Gates_n54]

Originally Posted by NoGuru

Looks pretty good and you are ready for a tune.

Thanks for taking a look.

Gonna keep with the MHD OTS maps until I swap the Twins over to a Single turbo setup in a few months.

[mrbeefy]

Hello yall, im having an issue under boost lately where the engine sounds off like maybe its leaning out a bit, and it doesnt feel as though it is as fast as it used to be, I am suspecting hpfp with some of the codes I found, and have ordered a replacement even though it may still be under warrenty, I just would rather accomplish the replacement by myself since the local BMW dealer here seems a bit unfamilair with these cars, also last time i took it there I got a call at 11pm after i picked it up asking me if I wanted to sell them my car, this seemed a bit off to me and I feel Id like to save my car the abuse they would probably give it on a "test drive" anyway heres my MHD log, looks a bit jagged to me but I am not savvy with LOGs so please someone who can tell me what I am missing. Thankyou for your input

[type-dRew]

Originally Posted by mrbeefy

Hello yall, im having an issue under boost lately where the engine sounds off like maybe its leaning out a bit, and it doesnt feel as though it is as fast as it used to be, I am suspecting hpfp with some of the codes I found, and have ordered a replacement even though it may still be under warrenty, I just would rather accomplish the replacement by myself since the local BMW dealer here seems a bit unfamilair with these cars, also last time i took it there I got a call at 11pm after i picked it up asking me if I wanted to sell them my car, this seemed a bit off to me and I feel Id like to save my car the abuse they would probably give it on a "test drive" anyway heres my MHD log, looks a bit jagged to me but I am not savvy with LOGs so please someone who can tell me what I am missing. Thankyou for your input

Upload to datazap.com

[RSL]

Originally Posted by type-dRew

Upload to datazap.com

datazap.me, not .com.

[type-dRew]

Originally Posted by RSL

datazap.me, not .com.

Thats my fault. I usually just drop links and never noticed the ending.

[RSL]

No biggie, but can wind up sending people to spam sites that way lol Let the guy in the other thread know the correct url.

[mrbeefy]

Originally Posted by RSL

datazap.me, not .com.

Ok done, https://datazap.me/u/mrbeefy/log-155...og=0&data=3-21 hope i did that right

[type-dRew]

Originally Posted by mrbeefy

Ok done, https://datazap.me/u/mrbeefy/log-155...og=0&data=3-21 hope i did that right

Ok yeah that worked, but that graph is just you cruising and then stabbing the throttle a couple times.

3rd gear wide open from about 2500 to 6500 at least is the best way to get a picture for a good log

[mrbeefy]

Originally Posted by type-dRew

Ok yeah that worked, but that graph is just you cruising and then stabbing the throttle a couple times.

3rd gear wide open from about 2500 to 6500 at least is the best way to get a picture for a good log

yeah that was accelerating through the first two gears twice, ill repost a better one tomorrow, thanks for having a peek

[BM3Rrrr]

Please have a look
Stg 2 + 93 oct

https://datazap.me/u/mfdoom/44?log=0...21&zoom=18-118

I don't like the look of the STFT's and all the timing corrections across the cylinders.
Boost psi is exceeding target for the first part of the pull, not sure if I should be concerned with that.
Car drives fine besides the 29e0 code I've been getting lately after replacing cyl 2 injector because it was leaking (replaced the plug at the same time)
Reset Lambda's right before the logs, not sure that makes a difference.

Mods are as follows:
FMIC
CP w/ Turbosmart Kompact BOV's
DP's
DCI
Coils (Bosch) and plugs (NGK 1 step colder) replaced within last 10,000kms
xHP stg 2

Thanks

[mrbeefy]

I removed my jb4 as it was acting oddly and I couldnt maintain a connection to do the logging, I also intalled a new tune without the backend flash but I am still getting the same issue, it accelerated fine until it falls on its face then triggers the check engine light and begins to sound like a subaru. I pull over restart and the CEL goes away and it runs fine again. I am not sure if I am getting too little or too much fuel, my AFR on acceleration seems a bit lean to me but I am not certain. please take a look and let me know what you think. thanks https://datazap.me/u/mrbeefy/log-155...-3-10-12-20-21


**EDIT**
so i may have found the issue, turns out the number 4 spark plug was loose and now its much happier. however it still has a bit of a miss, heres the latest log. https://datazap.me/u/mrbeefy/log-155...14-15-16-20-21 hopefully you all can see something that is up. I would love to take a log on the highway but as of lately anymore boost than stock makes my trans slip in 5th and 6th so theres that. I am currently rebuilding an extra trans i picked up and should have that in next week.

[dan_88]

Think I might be having hpfp issues, on some logs it looks ok and the next it drops
Https://datazap.me/u/dan88/log-15540...og=0&data=3-23

Https://datazap.me/u/dan88/log-15540...solo=3&mark=62

Any advice apreciated

Dps, fmic, chargepipe and inlets running uk99ron fuel

[335e92tx]

Originally Posted by BM3Rrrr

Please have a look
Stg 2 + 93 oct

https://datazap.me/u/mfdoom/44?log=0...21&zoom=18-118

I don't like the look of the STFT's and all the timing corrections across the cylinders.
Boost psi is exceeding target for the first part of the pull, not sure if I should be concerned with that.
Car drives fine besides the 29e0 code I've been getting lately after replacing cyl 2 injector because it was leaking (replaced the plug at the same time)
Reset Lambda's right before the logs, not sure that makes a difference.

Mods are as follows:
FMIC
CP w/ Turbosmart Kompact BOV's
DP's
DCI
Coils (Bosch) and plugs (NGK 1 step colder) replaced within last 10,000kms
xHP stg 2

Thanks

Age of o2s and n54?

its pulling timing pretty bad.

Ah, you also got a 22degre IAT increase over 4 secs. So what ic is this or do you live in the Sahara ?

[BM3Rrrr]

Originally Posted by 335e92tx

Age of o2s and n54?

its pulling timing pretty bad.

Ah, you also got a 22degre IAT increase over 4 secs. So what ic is this or do you live in the Sahara ?

Car is 2010, never replaced 02's
Yes N54
Im in Perth, Australia....pretty much the Sahara. It was +34 deg C the day I took the log. IC is a Mishimoto
After resetting the Lamba adaptations 3 days ago the 29e0 code hasn't come back.
Was wondering about the STFT's being that they are quite far apart...

[335e92tx]

Originally Posted by kulxio

.

Originally Posted by FCobra94

Yeah dude, that's really really really bad.

I would start by updating MHD since there is no E60 map anymore. Run the newest E50 map instead and see what happens.

If everything with the LPFP checks out (hardware/installations wise) you might try swapping in another Fuel Pump Module to see if that makes a difference.

You also aren't logging throttle opening. That max it much easier to know when you go WFO. Please make sure that is being logged.

[335e92tx]

Originally Posted by BM3Rrrr

Car is 2010, never replaced 02's
Yes N54
Im in Perth, Australia....pretty much the Sahara. It was +34 deg C the day I took the log. IC is a Mishimoto
After resetting the Lamba adaptations 3 days ago the 29e0 code hasn't come back.
Was wondering about the STFT's being that they are quite far apart...

As o2s age they become coated with various deposits. That means it takes longer for the voltages to actually change to the point the ECM registers it. Thats all Short term trims bro.. when they get behind - they try to catch up.


That means it's your next maintenance item my friend.

https://en.wikipedia.org/wiki/Oxygen...a_lambda_probe
The probe
An aging or fouled sensor tends to have a slower response time, which can degrade system performance.

It was +34 deg C the day I took the log. IC is a Mishimoto

As far as your IATs go,, sounds like 34C is close to 94 and thats a lot of load to pull down - after more than about 15mins of drving time. If it has OEM connectors you need more..

.. .. Id start looking for a bigger IC (7") and or meth.

[335e92tx]

Originally Posted by dan_88

Think I might be having hpfp issues, on some logs it looks ok and the next it drops
Https://datazap.me/u/dan88/log-15540...og=0&data=3-23

Https://datazap.me/u/dan88/log-15540...solo=3&mark=62

Any advice apreciated

Dps, fmic, chargepipe and inlets running uk99ron fuel

just getting back access bro. Ill look in the AM.. UK ron.. hmm I think thats still 93 for us on this side of the pond.

First thing that we will need to think about is if this petrol (;-) ) wont quite do it you might need to look for others.. They aren't all the same. So start lookng at what you can get close by for about the same lb/sterling

;-)

EDIT.
Actually it looks good (you are prob sleeping now UK bro), but its right at the limit on that fuel.
It cant prob take much more of anything without all kinds of complications.

[BM3Rrrr]

Originally Posted by 335e92tx

As o2s age they become coated with various deposits. That means it takes longer for the voltages to actually change to the point the ECM registers it. Thats all Short term trims bro.. when they get behind - they try to catch up.


That means it's your next maintenance item my friend.

https://en.wikipedia.org/wiki/Oxygen...a_lambda_probe
The probe
An aging or fouled sensor tends to have a slower response time, which can degrade system performance.


As far as your IATs go,, sounds like 34C is close to 94 and thats a lot of load to pull down - after more than about 15mins of drving time. If it has OEM connectors you need more..

.. .. Id start looking for a bigger IC (7") and or meth.

Makes sense, so its recommended to replace both bank 1&2 pre and post o2 sensors then?

I did another log with stg 2+ 91-95oct. Cyl timing corrections are much less now. Banks 1&2 STFT's still off by more then 10%
https://datazap.me/u/mfdoom/91-95-ap...&data=23-24-25

Also did one under idle, LTFT's are off as well.
https://datazap.me/u/mfdoom/idle-apr...og=0&data=3-23

[dan_88]

Originally Posted by 335e92tx

just getting back access bro. Ill look in the AM.. UK ron.. hmm I think thats still 93 for us on this side of the pond.

First thing that we will need to think about is if this petrol (;-) ) wont quite do it you might need to look for others.. They aren't all the same. So start lookng at what you can get close by for about the same lb/sterling

;-)

EDIT.
Actually it looks good (you are prob sleeping now UK bro), but its right at the limit on that fuel.
It cant prob take much more of anything without all kinds of complications.

Thanks for your input. I was just a bit concerned about the rail pressure dropping to about 700 in the first run. Wish we could have e85 over here in the uk

[335e92tx]

Originally Posted by BM3Rrrr

Makes sense, so its recommended to replace both bank 1&2 pre and post o2 sensors then?

I did another log with stg 2+ 91-95oct. Cyl timing corrections are much less now. Banks 1&2 STFT's still off by more then 10%
https://datazap.me/u/mfdoom/91-95-ap...&data=23-24-25

Also did one under idle, LTFT's are off as well.
https://datazap.me/u/mfdoom/idle-apr...og=0&data=3-23

Id start with only fronts. I have not ever gotten a clear understanding of how Back o2s are involved in the Trim process for N54s. No other closed loop system uses rear O2s to influence trims that I know of. They are used to assess cat efficiency by comparing front o2s to post cat readings..

[335e92tx]

Originally Posted by dan_88

Thanks for your input. I was just a bit concerned about the rail pressure dropping to about 700 in the first run. Wish we could have e85 over here in the uk

I would actually more watch the relationship with the HP/LP pumps. At higher rpm if the LP pump is marginal the HP pump will drop in to the 1500 range and that can be where things get tricky. ECM might go into baseline mode for LAMBDA to avoid cat temps issues.

You are getting near 50psi at peak loads (high rpm) for the low pump. Thats the lower limit