[Ilvez]

I am no log expert but why your accel.ped position shows 100%, while throttle is constantly at 81%? Bad sensors?

Originally Posted by djt81185

https://datazap.me/u/djt81185/v10-e5...a=3-4-23-26-29

Was wondering if yall could take a look at my DDs logs. Newish to n54s but not to tuning (lsj and turbo lsx tuning in my past).

Was wondering about throttle closure whem getting to fulls spool, stfts, target boost and load vs actuals, wgdc.

Thanks and appreciate the help.

08 335xi auto 140k. Recent coils plugs walnut blast new o2s etc
FBO with relocated inlets and outlets, MHD v10 2+ e50 xhp stg 3 535 lpfp
Vrsf 5” hd stepped due to keeping stock adaptive cruise.

[Sgop335]

Originally Posted by djt81185

https://datazap.me/u/djt81185/v10-e5...a=3-4-23-26-29

Was wondering if yall could take a look at my DDs logs. Newish to n54s but not to tuning (lsj and turbo lsx tuning in my past).

Was wondering about throttle closure whem getting to fulls spool, stfts, target boost and load vs actuals, wgdc.

Thanks and appreciate the help.

08 335xi auto 140k. Recent coils plugs walnut blast new o2s etc
FBO with relocated inlets and outlets, MHD v10 2+ e50 xhp stg 3 535 lpfp
Vrsf 5” hd stepped due to keeping stock adaptive cruise.

Clean log, timing is missing. Thats overboost after spool, which tuning can remove not a big deal.
Iat seems high, what was the ambient or was the log done in summer?
Interesting on the 535i lpfp, how did you do it? Those are bosch pumps and they seem better that the 335i

[jacobw1425]

Originally Posted by Sgop335

short term fuel trims are pretty much maxed out. Traction control has kicked in for most of the run (torque limiter=1).

Appreciate the input, been really paying attention to stfts the past few days and been noticing an intermittent issue, at one minute I’ll be where I should be and at a random point throughout the drive they’ll go to one bank being okay and one being 14-18% and both obviously maxing out during pulls, I’m also presented with these codes, really hoping it’s nothing injector related as I put in some used index 12s a couple months ago

[Sgop335]

I was going to suggest fuel adaptations reset but what is with the post cat o2 sensor codes especially swapped etc? Are they plugged in correctly

[SlowE92]

Originally Posted by djt81185

https://datazap.me/u/djt81185/v10-e5...a=3-4-23-26-29

Was wondering if yall could take a look at my DDs logs. Newish to n54s but not to tuning (lsj and turbo lsx tuning in my past).

Was wondering about throttle closure whem getting to fulls spool, stfts, target boost and load vs actuals, wgdc.

Thanks and appreciate the help.

08 335xi auto 140k. Recent coils plugs walnut blast new o2s etc
FBO with relocated inlets and outlets, MHD v10 2+ e50 xhp stg 3 535 lpfp
Vrsf 5” hd stepped due to keeping stock adaptive cruise.

Negative fuel trims usually indicate that your fuel mixture is too rich. STFT is real time and LTFT is over a period of time. A negative STFT real time indicates you're pulling fuel because the mixture is too rich. You can have throttle closure due to overboosting or if you don't have the DSC disabled. You're running ethanol though so a rich mixture is normal.

[djt81185]

Originally Posted by Ilvez

I am no log expert but why your accel.ped position shows 100%, while throttle is constantly at 81%? Bad sensors?

Im no expert but on gm platforms max tps was always 88% at wot that way the ecm could see if it was opening too far (ie tps over 88) and correct for it with pedal position at 100.

[djt81185]

Originally Posted by Sgop335

Clean log, timing is missing. Thats overboost after spool, which tuning can remove not a big deal.
Iat seems high, what was the ambient or was the log done in summer?
Interesting on the 535i lpfp, how did you do it? Those are bosch pumps and they seem better that the 335i

Thank you

I am out of channels to log…maybe i can drop ambient pressure and get cyl 1 timing on there.

I figured i might have overboost with 2” relocated inlets and outlets on a mhd canned tune but good to hear its nothing major. Iirc ive seen like 9* i think?

That was ambient. Dallas beginning of sept.

Its not a 535i pump its actually a pfs double pumper with a walbro 535 primary and 525 secondary and the arcterminator active cooling on a coded ekpm3. Im just too lazy to hook up the 2nd pump lol.

Ill try shuffling channels around and get timing in there.

[djt81185]

Originally Posted by SlowE92

Negative fuel trims usually indicate that your fuel mixture is too rich. STFT is real time and LTFT is over a period of time. A negative STFT real time indicates you're pulling fuel because the mixture is too rich. You can have throttle closure due to overboosting or if you don't have the DSC disabled. You're running ethanol though so a rich mixture is normal.

Tbh i was wondering about the trims. Driving normally and in traffic stft and ltft sit in the +-5 range and even across the banks.

I was thinking I had my e85 blend wrong (i havent checked pump e level and ive been assuming 10% in the 93 and 83% max at pump from the sticker) but the part throttle trims make me think they are fine.

I was wondering if not hitting the load targets and boost targets is maybe why it was pulling fuel to get afrs right.

I was assuming closure was due to slight overboost on spool up but ill double check dsc is off on next log.

Appreciate your input!

[TiAgAu]

Originally Posted by Ilvez

I am no log expert but why your accel.ped position shows 100%, while throttle is constantly at 81%? Bad sensors?

Normal. It’s not % but rather degrees. So 81 degrees of angle.

Many other vehicle brands are the same.

[SlowE92]

Originally Posted by djt81185

Tbh i was wondering about the trims. Driving normally and in traffic stft and ltft sit in the +-5 range and even across the banks.

I was thinking I had my e85 blend wrong (i havent checked pump e level and ive been assuming 10% in the 93 and 83% max at pump from the sticker) but the part throttle trims make me think they are fine.

I was wondering if not hitting the load targets and boost targets is maybe why it was pulling fuel to get afrs right.

I was assuming closure was due to slight overboost on spool up but ill double check dsc is off on next log.

Appreciate your input!

Are you mixing your own blends? A good tool to have is the ethanol content analyzer from motiv, but it'll run you a couple hundred.. BMS also offers one and fuel it! does as well for a little cheaper. Ethanol at the pump is "up to" 10% I would just make the mixture a little more rich. Also, you will absolutely have overboost with inlets on an OTS map. My advice is either get a custom tune or a JB4, both will run you about the same amount. Both will help with your fuel trims. +/- 5% at warm idle is normal. Im 95% sure you're pulling fuel to keep your AFR in check due to your inlets. Didn't take a good look at your log before.

[djt81185]

Originally Posted by SlowE92

Are you mixing your own blends? A good tool to have is the ethanol content analyzer from motiv, but it'll run you a couple hundred.. BMS also offers one and fuel it! does as well for a little cheaper. Ethanol at the pump is "up to" 10% I would just make the mixture a little more rich. Also, you will absolutely have overboost with inlets on an OTS map. My advice is either get a custom tune or a JB4, both will run you about the same amount. Both will help with your fuel trims. +/- 5% at warm idle is normal. Im 95% sure you're pulling fuel to keep your AFR in check due to your inlets. Didn't take a good look at your log before.

I am mixing my own blend and actually have the ethanol kit on my workbench (the non reflex version of motiv). Just haven’t gotten around to installing it.

Pulled another log this morning and it was showing 46 deg outside and dsc was long pressed off lmk what yall think

https://datazap.me/u/djt81185/3-4-e50?log=0&data=3-21

Surprised at all the timing corrections tbh. I prob should test my ethanol and see if i need to adjust mix after seeing that.

I can see i prob should have put a 7” on but i like my adaptive cruise

Thanks

[jacobw1425]

Originally Posted by Sgop335

I was going to suggest fuel adaptations reset but what is with the post cat o2 sensor codes especially swapped etc? Are they plugged in correctly

Not sure bought the car with those codes but I didn’t think they mattered too much being catless and figured they’d disappear after I tuned the car but I’ll investigate further, I was mainly concerned about pre cat o2’s.

[SlowE92]

Originally Posted by djt81185

I am mixing my own blend and actually have the ethanol kit on my workbench (the non reflex version of motiv). Just haven’t gotten around to installing it.

Pulled another log this morning and it was showing 46 deg outside and dsc was long pressed off lmk what yall think

https://datazap.me/u/djt81185/3-4-e50?log=0&data=3-21

Surprised at all the timing corrections tbh. I prob should test my ethanol and see if i need to adjust mix after seeing that.

I can see i prob should have put a 7” on but i like my adaptive cruise

Thanks

Yeah you have throttle closure and timing corrections simutaneously. This looks more like a fueling issue than anything else. Your stft is running extremely rich at 2800 RPM.. +30% is not good at all. You're adding fuel off load and pulling fuel during load. Balance out those AFR, get a custom tune. Like I said before it's probably due to your inlets on the ots map.

[335xiE90]

Alright so I swear I'm feeling an oscillation at WOT. Does anyone see anything odd in my log to suggest HPFP or LPFP issues? this is a 3rd gear run.

https://datazap.me/u/matthew-pinola/...0&data=3-12-21

[SlowE92]

Originally Posted by 335xiE90

Alright so I swear I'm feeling an oscillation at WOT. Does anyone see anything odd in my log to suggest HPFP or LPFP issues? this is a 3rd gear run.

https://datazap.me/u/matthew-pinola/...0&data=3-12-21

Your fuel pressure is good, LPFP and HPFP, WGDC looks good. You are pulling fuel during WOT, your STFT at around 5k RPM is at -23. It looks like off load or light load you are adding fuel +13*. WGDC looks good and you're hitting boost target. Looks more like a fueling issue, possibly 02 sensor or injector. Is this on the ACN91 map?

[SlowE92]

Originally Posted by 335xiE90

Alright so I swear I'm feeling an oscillation at WOT. Does anyone see anything odd in my log to suggest HPFP or LPFP issues? this is a 3rd gear run.

https://datazap.me/u/matthew-pinola/...0&data=3-12-21

You are feeling oscillation due to throttle cut when you start to pull fuel. Are you running inlets on an OTS map? It could be a boost leak but im hesitant because your WGDC looks good.

[335xiE90]

Originally Posted by SlowE92

You are feeling oscillation due to throttle cut when you start to pull fuel. Are you running inlets on an OTS map? It could be a boost leak but im hesitant because your WGDC looks good.

No inlets. If I had a boost leak would I still reach full boost? I'm seeing 18.8lbs on these cold days.

Edit: I should have been on the 93 tune, but im not 100% sure because I may have had the lower octane map selected. I'll try to get another run tonite!

[SlowE92]

Originally Posted by 335xiE90

No inlets. If I had a boost leak would I still reach full boost? I'm seeing 18.8lbs on these cold days.

Edit: I should have been on the 93 tune, but im not 100% sure because I may have had the lower octane map selected. I'll try to get another run tonite!

yes you could still hit peak boost it just might take longer and your WGDC would be higher. Thats why I said I was hesitant because your wastegates look good. It wouldn't hurt to check though. Are you throwing any codes? Any shadow codes? Are you running a tune?

[335xiE90]

Originally Posted by SlowE92

yes you could still hit peak boost it just might take longer and your WGDC would be higher. Thats why I said I was hesitant because your wastegates look good. It wouldn't hurt to check though. Are you throwing any codes? Any shadow codes? Are you running a tune?

The only shadow codes I have are 2AAF - Fuel Pump Plausibility and another for the exhaust valve. My googling has told me to ignore 2AAF by itself. Is that still accurate?

[SlowE92]

Originally Posted by 335xiE90

The only shadow codes I have are 2AAF - Fuel Pump Plausibility and another for the exhaust valve. My googling has told me to ignore 2AAF by itself. Is that still accurate?

I don't think it's fuel pump. Your timing corrections are nothing to scoff at so I'd rule fuel out. WGDC looks good so I don't think its a boost leak. Your LPFP and HPFP look good as well. Try pulling the plugs and see if any are covered in fuel. Possibly injector. The only thing on your log that looks out of whack are your fuel trims.

Edit: Your IAT rises 50 degrees during a pull??? Is this stock intercooler stock tune?

[335xiE90]

Originally Posted by SlowE92

I don't think it's fuel pump. Your timing corrections are nothing to scoff at so I'd rule fuel out. WGDC looks good so I don't think its a boost leak. Your LPFP and HPFP look good as well. Try pulling the plugs and see if any are covered in fuel. Possibly injector. The only thing on your log that looks out of whack are your fuel trims.

Edit: Your IAT rises 50 degrees during a pull??? Is this stock intercooler stock tune?

Stock intercooler but MHD Stage 2+ tune. I run 2+ in the winters here since I bought the car because of the cooler temps. I have a 7.5" IC just waiting on some other parts before I install. I just ordered the injector o-rings/decouplers so I can check all of them for leaks. I'm running 1 index 12 and the rest are index 8's.


Update: got misfires on cyl 3 and 5 tonite. 😳

[SlowE92]

Originally Posted by 335xiE90

Stock intercooler but MHD Stage 2+ tune. I run 2+ in the winters here since I bought the car because of the cooler temps. I have a 7.5" IC just waiting on some other parts before I install. I just ordered the injector o-rings/decouplers so I can check all of them for leaks. I'm running 1 index 12 and the rest are index 8's.

Check plugs and see if they are wet with fuel. If they are then you'll know which injectors they are.