[30FF_]

Originally Posted by Dave92N54

As others have said, corrections are probably fuel. As for your AFR, that is normal. It should read 234.95 on decel.

Originally Posted by Dave92N54

As others have said, corrections are probably fuel. As for your AFR, that is normal. It should read 234.95 on decel.

Thanks for the input Dave and yes I've finally come to realize that after months 🤦🏽*♂️

[30FF_]

Originally Posted by Saif2018

Yes, E50 is 50/50 mixture isn't it?

So if you have 91 Oct (worst fuel) mixed with Ethanol (best fuel) , it's possible to get timing corrections.

Try 93oct with E85 and you can compare and confirm

Originally Posted by Dave92N54

As others have said, corrections are probably fuel. As for your AFR, that is normal. It should read 234.95 on decel.

Originally Posted by Saif2018

Yes, E50 is 50/50 mixture isn't it?

So if you have 91 Oct (worst fuel) mixed with Ethanol (best fuel) , it's possible to get timing corrections.

Try 93oct with E85 and you can compare and confirm

Dam I see would you suggest some octane booster help ?

[Saif2018]

Originally Posted by 30FF_

Dam I see would you suggest some octane booster help ?

Personally don't use octane boosters, better to find 93 oct fuel and see if timing corrections improve.

[iqraceworks]

Originally Posted by 30FF_

I'm running v9 e50 its pretty decent I like it power seems smooth but my personal favorite is v7 e60 like others have stated this map is more of a top end map power wise

I always heard that V5 E40 was the most powerful flash MHD has came out with...might have to try the V7 e60

[HB E90]

Originally Posted by Saif2018

Personally don't use octane boosters, better to find 93 oct fuel and see if timing corrections improve.

Cant get 93 oct anywhere here in Cali. Nobody here would use crap acn91 if we could get 93. Try 60% E85 on a E50 map. Heck I'm running 30% E85 just to run the 93 oct map and I still see some TC's. Mostly on shifts now? https://datazap.me/u/curt/v90-2-93oc...-9-10-11-12-22
https://datazap.me/u/curt/back-v9-2-...-10-11-12-22my
plugs and coils have about 8k mi on them?

[Asreegan]

Originally Posted by 30FF_

I took a look at your logs I also have upgraded stage 2 pump from bmp but 2aaf is a common code you can try to code out with pro tool but was alarms me is your afrs reach 200 and mine do to have you changed o2 sensors ?

Originally Posted by 30FF_

I took a look at your logs I also have upgraded stage 2 pump from bmp but 2aaf is a common code you can try to code out with pro tool but was alarms me is your afrs reach 200 and mine do to have you changed o2 sensors ?

No I have not changed my o2 sensors..sorry I'm super new to this..Afrs 200 is bad?

[Saif2018]

Originally Posted by HB E90

Cant get 93 oct anywhere here in Cali. Nobody here would use crap acn91 if we could get 93. Try 60% E85 on a E50 map. Heck I'm running 30% E85 just to run the 93 oct map and I still see some TC's. Mostly on shifts now? https://datazap.me/u/curt/v90-2-93oc...-9-10-11-12-22
https://datazap.me/u/curt/back-v9-2-...-10-11-12-22my
plugs and coils have about 8k mi on them?

That explains why 91oct, yes the other alternative is increased E85

Post shift timing corrections are common even on higher octane fuel, Would only worry if the corrections are sustained over 3 degrees over the pull etc, which looks like what your getting. You could try higher E85 mix to see of it improved

Plugs probably getting tired, coils should last much longer

[iqraceworks]

Maybe I missed it.....but have you actually tested the ethanol content coming from your e85 pump?

I checked mine last weekend when I filled up and it was showing 65% ethanol coming from the e85 pump.

[HB E90]

Originally Posted by Saif2018

That explains why 91oct, yes the other alternative is increased E85

Post shift timing corrections are common even on higher octane fuel, Would only worry if the corrections are sustained over 3 degrees over the pull etc, which looks like what your getting. You could try higher E85 mix to see of it improved

Plugs probably getting tired, coils should last much longer

Thanks. I'll need to upgrade the LPFP if I want to run anymore E. Already low 50's psi even dipping just below at times on WOT on 2+. Is that a major concern? I dont push it that hard very often. I tested to E85 I'm getting at around 80%

[Saif2018]

Originally Posted by HB E90

Thanks. I'll need to upgrade the LPFP if I want to run anymore E. Already low 50's psi even dipping just below at times on WOT on 2+. Is that a major concern? I dont push it that hard very often. I tested to E85 I'm getting at around 80%

Yeah, that's why I suggested higher oct pump gas first,

50 psi is getting seriously low. I would aim for at least 60 psi, if your getting low 50's or less, time for a LPFP upgrade.

[30FF_]

Originally Posted by HB E90

Cant get 93 oct anywhere here in Cali. Nobody here would use crap acn91 if we could get 93. Try 60% E85 on a E50 map. Heck I'm running 30% E85 just to run the 93 oct map and I still see some TC's. Mostly on shifts now? https://datazap.me/u/curt/v90-2-93oc...-9-10-11-12-22
https://datazap.me/u/curt/back-v9-2-...-10-11-12-22my
plugs and coils have about 8k mi on them?

Originally Posted by HB E90

Cant get 93 oct anywhere here in Cali. Nobody here would use crap acn91 if we could get 93. Try 60% E85 on a E50 map. Heck I'm running 30% E85 just to run the 93 oct map and I still see some TC's. Mostly on shifts now? https://datazap.me/u/curt/v90-2-93oc...-9-10-11-12-22
https://datazap.me/u/curt/back-v9-2-...-10-11-12-22my
plugs and coils have about 8k mi on them?

Exactly man can't get anything good out here but crappy 91 and that one vpracing gas station that's far af from me 😂

[Asreegan]

Hi guys, got my lpfp fixed..replaced the fuel filter and recoded it..the lpfp looks fine now but the boost seems not to reach its target.have a look at my log below..what could possibly cause this..

https://datazap.me/u/asreegan/31st?log=0&data=22

Appreciate your guidance as always

[Dave92N54]

Originally Posted by Asreegan

Hi guys, got my lpfp fixed..replaced the fuel filter and recoded it..the lpfp looks fine now but the boost seems not to reach its target.have a look at my log below..what could possibly cause this..

https://datazap.me/u/asreegan/31st?log=0&data=22

Appreciate your guidance as always

First and foremost, you're running lean and I would not go WOT until that is resolved. A 14.25 afr at 5500rpm is... not good...

You're HPFP is tanking. At 4400rpm you're clipping 88bar which I believe is like 1200psi? As a general rule of thumb, you never want this below 1500psi or 103bar.

You also most likely have a boost leak, you're down ~.5bar or ~6psi, there is no way that is not incredibly noticable. You must have a blown intercooler connection or charge pipe or something.

Another thing, this log is good enough but most of us are looking for a 3rd gear log.

[RSL]

There may be codes, boost leak is not the immediate problem. AFR and HPFP are where they should be.

Check codes. If there's a 3100, there should be at least one other code with it. Note any codes, clear, let car sleep a few minutes and log again if no codes pop back up.

[Dave92N54]

Originally Posted by RSL

There may be codes, boost leak is not the immediate problem. AFR and HPFP are where they should be.

Check codes. If there's a 3100, there should be at least one other code with it. Note any codes, clear, let car sleep a few minutes and log again if no codes pop back up.

I'm sorry but, how? At 5500 rpm his AFR should be around 12.2 or so, and the hpfp should be at minimum 1500psi, not the 1300 it's at.

[Saif2018]

Originally Posted by RSL

There may be codes, boost leak is not the immediate problem. AFR and HPFP are where they should be.

Check codes. If there's a 3100, there should be at least one other code with it. Note any codes, clear, let car sleep a few minutes and log again if no codes pop back up.

I agree with Dave,

HPFP is tanking, maybe the reason why AFR is off.

HPFP below 1500rpm is getting dangerously low.

Boost leaks don't necessarily show up with a code.

[RSL]

Originally Posted by Saif2018

I agree with Dave,

HPFP is tanking, maybe the reason why AFR is off.

HPFP below 1500rpm is getting dangerously low.

Boost leaks don't necessarily show up with a code.

You're free to agree all you want of course, but consensus doesn't make it true.

AFR is not off, stock IJE0S is mid-14s pretty much everywhere for 95 load or less. HPFP low at no boost is not only not dangerous, it's where it should be.

DME isn't even trying to make boost, which makes a boost leak irrelevant until the reason it isn't trying is resolved (usually 3100, which might be from a boost leak or other code).

[Dave92N54]

Originally Posted by RSL

You're free to agree all you want of course, but consensus doesn't make it true.

AFR is not off, stock IJE0S is mid-14s pretty much everywhere for 95 load or less. HPFP low at no boost is not only not dangerous, it's where it should be.

DME isn't even trying to make boost, which makes a boost leak irrelevant until the reason it isn't trying is resolved (usually 3100, which might be from a boost leak or other code).

I have no intentions of starting anything here (figured I need to clarify as things on the internet often turn sour) but i'm curious what makes you think the DME is not trying to build boost? To me it looks like both boost target and load req indicate it's trying to, but he's not making any.

I absolutely see what you're saying as far as the hpfp and afr go though, with load as low as it is, makes sense, honestly didn't take that into consideration.

[Saif2018]

Originally Posted by RSL

You're free to agree all you want of course, but consensus doesn't make it true.

AFR is not off, stock IJE0S is mid-14s pretty much everywhere for 95 load or less. HPFP low at no boost is not only not dangerous, it's where it should be.

DME isn't even trying to make boost, which makes a boost leak irrelevant until the reason it isn't trying is resolved (usually 3100, which might be from a boost leak or other code).

He's WOT and way off boost target, which is typically a boost leak or wastegates not holding boost,

Yes, Load request and load targets also off,

Last time I checked, 1300psi from the HPFP under full throttle is not normal,

Your suggesting its because of low load, faulty DME?

[RSL]

DME is fine.

Originally Posted by Dave92N54

I have no intentions of starting anything here (figured I need to clarify as things on the internet often turn sour) but i'm curious what makes you think the DME is not trying to build boost? To me it looks like both boost target and load req indicate it's trying to, but he's not making any.

I absolutely see what you're saying as far as the hpfp and afr go though, with load as low as it is, makes sense, honestly didn't take that into consideration.

Nor am I, just pointing out to look at the whole log. Taking individual param values with no context can lead to conclusions that are off.

Yes, load req and target are high and there's no boost, which means low actual load (and low AFR/HPFP). If you open a bin, you can pinpoint AFR target from load and rpm (excluding any limp/emergency/external factors). Locked bins, you're out of luck, but poster is on a stock rom.

There is no PID, the WGDC is riding on the base, which means the DME is not commanding any increase at all to go with the huge boost error. Boost control is likely disabled and probably from 3100, which comes with other codes. If poster ever responds, we'd know lol

[Dave92N54]

Originally Posted by RSL

DME is fine.

Nor am I, just pointing out to look at the whole log. Taking individual param values with no context can lead to conclusions that are off.

Yes, load req and target are high and there's no boost, which means low actual load (and low AFR/HPFP). If you open a bin, you can pinpoint AFR target from load and rpm (excluding any limp/emergency/external factors). Locked bins, you're out of luck, but poster is on a stock rom.

There is no PID, the WGDC is riding on the base, which means the DME is not commanding any increase at all to go with the huge boost error. Boost control is likely disabled and probably from 3100, which comes with other codes. If poster ever responds, we'd know lol

Thank you for the clarification, always willing to learn more about these cars.

As for the poster, it seems he has an E92 that's been N54 swapped from an N46. You're clearly much more knowledgeable than I am on this subject, but this may be quite a difficult issue to solve.


Very off topic but I've found some odd behavior in my own logs i'd very much like for you to take a look at if you've got the chance.

[Saif2018]

Originally Posted by RSL

DME is fine.

Nor am I, just pointing out to look at the whole log. Taking individual param values with no context can lead to conclusions that are off.

Yes, load req and target are high and there's no boost, which means low actual load (and low AFR/HPFP). If you open a bin, you can pinpoint AFR target from load and rpm (excluding any limp/emergency/external factors). Locked bins, you're out of luck, but poster is on a stock rom.

There is no PID, the WGDC is riding on the base, which means the DME is not commanding any increase at all to go with the huge boost error. Boost control is likely disabled and probably from 3100, which comes with other codes. If poster ever responds, we'd know lol

Thank you for the explanation, I'll admit didn't look at every single parameter, because I don't understand the correlation between all of them, just a general understanding.

Codes don't always trigger though, I've seen boost leaks several psi off target, no 3100 codes or 30FF codes, but yes your right it's possible.