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11-27-2012, 05:32 PM | #6676 |
Scooby Specialist
Member#: 172698
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Des Moines, IA
Vehicle:11 STi BW 8374 E85 02 v8 Spec C E85 |
It sure is!
He is an awesome guy and yes, its a great car that was done right.
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11-27-2012, 06:52 PM | #6677 |
Scooby Specialist
Member#: 76785
Join Date: Dec 2004
Chapter/Region:
MWSOC
Location: DSM iowa
Vehicle:2000 700Whp The RSTI SRP |
This car is awesome and even better on E85!! I love my RSTI but it makes me want to build a 207 car!
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11-27-2012, 07:01 PM | #6678 |
Scooby Specialist
Member#: 248202
Join Date: May 2010
Chapter/Region:
MWSOC
Location: Columbus, Ohio
Vehicle:2013 WRX Sedan SWP |
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12-04-2012, 10:13 PM | #6679 |
Scooby Guru
Member#: 149262
Join Date: May 2007
Chapter/Region:
MWSOC
Location: Grand Rapids MI
Vehicle:03WR rallycarFXTleg PrimerGrey |
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12-04-2012, 11:32 PM | #6680 |
Scooby Specialist
Member#: 52314
Join Date: Jan 2004
Chapter/Region:
South East
Location: Following the green weenie
Vehicle:... 02 and 04 WRXs! 2020 G70 3.3T RWD |
My WOT AFR seems to lean out a bit over a period of a few months. I have done so many MAF tabs and it never shows that much correction after I interpolate it. I've worked on the lower voltage values a tad bit to try and eliminate some idle oscillation.
I pulled an injector today and it's perfectly clean. I'm wondering if it's the long term trims, or if it's a loss of fuel pressure. Any general guidelines as to what I should look at next? I'm going to double check that there is no leak between the MAF and turbo this weekend to try and eliminate that. |
12-05-2012, 12:27 AM | #6681 |
Scooby Specialist
Member#: 183480
Join Date: Jun 2008
Chapter/Region:
South East
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are your load values or maf volts the same as they were a few months ago? with the colder weather now vs. a few months ago, you could possibly be seeing higher load values or maf volts that were improperly estimated before.
also remember that the maf tab as well as learned fuel corrections are only performed in closed loop not open loop. so the corrections you see or don't see in the maf tab and learning view are completely irrelevant during WOT situations. |
12-05-2012, 12:44 AM | #6682 | |
Scooby Specialist
Member#: 52314
Join Date: Jan 2004
Chapter/Region:
South East
Location: Following the green weenie
Vehicle:... 02 and 04 WRXs! 2020 G70 3.3T RWD |
Quote:
I understand that. I'm just wondering if the long term fuel trim/ learning is leaning out the OL part vs some fuel issue. Adding a few cc's to the injector scalar will help the issue, but it seems like after 2 months or so it creeps back lean. All the times I've logged the MAF, they've looked about like below. But sometimes when I pull the LV, some of the corrections will be around 10 or 12% on the most used load section The weather does seem to screw with it some possibly. In warm weather under part throttle and getting into OL it will lean to 15-16 for a bit enough to hesitate, but if you just go WOT it hits perfectly. I've cut the delay down to 1 and upped the tip in some with no real change to that. |
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12-05-2012, 12:59 AM | #6683 |
Scooby Specialist
Member#: 183480
Join Date: Jun 2008
Chapter/Region:
South East
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i could be wrong, but based on your description and the screenshot above, it sounds/looks like your latencies, maf scaling, or both are off.
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12-05-2012, 10:10 AM | #6684 | ||
Scooby Specialist
Member#: 172698
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Des Moines, IA
Vehicle:11 STi BW 8374 E85 02 v8 Spec C E85 |
Quote:
Quote:
I'm thinking it could just be an effect of weather changes but maybe not. What does your D range fuel trim look like? It affects OL fueling so if its learning to trim fuel from that range, it would lean you out during WOT. Last edited by WRXt4cy; 12-05-2012 at 10:39 AM. |
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12-05-2012, 10:37 AM | #6685 |
Scooby Specialist
Member#: 73932
Join Date: Nov 2004
Chapter/Region:
RMIC
Location: Denver
Vehicle:2005 STi EFR 6758 04 S2000 EFR 7064 |
Over those few months, what is the ambient temperature doing? You'll find that if your MAF temp comp is off, your car will go from running well one day, to not running well another... Then run well again when temps return to where you scaled the MAF at.
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12-05-2012, 11:33 AM | #6686 |
Scooby Guru
Member#: 159243
Join Date: Sep 2007
Chapter/Region:
Tri-State
Location: medford nj 08055
Vehicle:5/01 bugeye Hakt Ecu is back! |
so i check online and the only E pump in town says open till 9pm. i roll in on vapors to a station with all the lights out at 8:10. i go inside the closed store and my favorite fuel associate is chillin with his feet up with the owner.
they tell me they closed early cause it gets dead around this time of night/year. i explained that if i couldnt get e85 i would be screwed. i didnt even have enough to get home. i showed them on my phone that their website said 9pm. i put on my sad face and asked politely if there was anyway they could help me out. the attendent vouched for my friendly demeanor and frequent fill ups. the owner looked at me and said, sure no problem...fire the pumps back up. STOKED! first inconvience with E85 but i still love it! 297.8km = 185miles 15 gallons / 185 miles = 12.3mpg. |
12-05-2012, 11:49 AM | #6687 |
Scooby Guru
Member#: 261612
Join Date: Oct 2010
Location: Minneapolis, MN
Vehicle:2002 WRX - 750WHP 9.5s @ 150mph |
Wow, NJ is funny. 24hr pay at the pump around here. Although I did manage to set off some kind of alarm while filling up after midnight one time (the inside part of the gas station was closed) and had two cops box in my car at the pump and question me, lol.
I have been getting 17+ mpg now that it's switched to winter blend around here. Normal mix of city and highway. I'm usually around 16mpg in the summer. |
12-05-2012, 11:52 AM | #6688 |
Scooby Specialist
Member#: 172698
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Des Moines, IA
Vehicle:11 STi BW 8374 E85 02 v8 Spec C E85 |
We've got it good in Des Moines, one of our more popular chains is a major backer of E85 and their stores are all open 24/7 365.
Also - that's some low mileage! Does that include a good amount of harder driving or not? I usually don't see worse than about 15 mpgs with mixed driving and some occasional WOT. |
12-05-2012, 01:23 PM | #6689 | ||
Scooby Specialist
Member#: 52314
Join Date: Jan 2004
Chapter/Region:
South East
Location: Following the green weenie
Vehicle:... 02 and 04 WRXs! 2020 G70 3.3T RWD |
Quote:
Quote:
I haven't looked at that yet. That is the ****y thing about around here the weather changes a lot. |
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12-05-2012, 02:05 PM | #6690 | |
Scooby Specialist
Member#: 172698
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Des Moines, IA
Vehicle:11 STi BW 8374 E85 02 v8 Spec C E85 |
Quote:
How stable is the ethanol content where you fuel up? Do you monitor it? Maybe the ethanol content just keeps creeping up on you. I'm still interested to know how lean its going on you. |
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12-05-2012, 03:03 PM | #6691 |
Scooby Specialist
Member#: 52314
Join Date: Jan 2004
Chapter/Region:
South East
Location: Following the green weenie
Vehicle:... 02 and 04 WRXs! 2020 G70 3.3T RWD |
I don't have one of the test kits, but around here, there is only one station chain that carries E85. Granted that doesn't change the fact that they might get it from various suppliers.
It's really only off by about .4-.5 over time, maybe less. Maybe I'm just being too anal? Last edited by 340Duster; 12-05-2012 at 03:14 PM. |
12-05-2012, 03:11 PM | #6692 | |
Scooby Specialist
Member#: 172698
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Des Moines, IA
Vehicle:11 STi BW 8374 E85 02 v8 Spec C E85 |
Quote:
What AFRs range are you talking? If you are staying between 11.2 and 11.8, I wouldn't worry too much about it. E85 has a wider range of AFRs it will tolerate well as opposed to gasoline. |
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12-05-2012, 03:18 PM | #6693 | |
Scooby Specialist
Member#: 52314
Join Date: Jan 2004
Chapter/Region:
South East
Location: Following the green weenie
Vehicle:... 02 and 04 WRXs! 2020 G70 3.3T RWD |
Quote:
Ron, feel free to comment |
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12-05-2012, 03:31 PM | #6694 | |
Scooby Specialist
Member#: 172698
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Des Moines, IA
Vehicle:11 STi BW 8374 E85 02 v8 Spec C E85 |
Quote:
So yeah, E85 has a pretty nice safety margin to it. |
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12-05-2012, 03:38 PM | #6695 |
Scooby Specialist
Member#: 73932
Join Date: Nov 2004
Chapter/Region:
RMIC
Location: Denver
Vehicle:2005 STi EFR 6758 04 S2000 EFR 7064 |
At 24 PSI and gas-referenced AFR of 14:1 on a VF39 WRX, I didn't have any knock. I didn't want to try any leaner than that.
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12-05-2012, 03:45 PM | #6696 |
Scooby Specialist
Member#: 172698
Join Date: Feb 2008
Chapter/Region:
MWSOC
Location: Des Moines, IA
Vehicle:11 STi BW 8374 E85 02 v8 Spec C E85 |
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12-05-2012, 04:07 PM | #6697 |
Scooby Specialist
Member#: 73932
Join Date: Nov 2004
Chapter/Region:
RMIC
Location: Denver
Vehicle:2005 STi EFR 6758 04 S2000 EFR 7064 |
I found considerably less power leaning it out that much.
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12-05-2012, 08:14 PM | #6698 |
Scooby Specialist
Member#: 183480
Join Date: Jun 2008
Chapter/Region:
South East
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power on e85 starts falling after about 12.3 on most setups that i have done
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12-05-2012, 08:28 PM | #6699 | |
Scooby Specialist
Member#: 305107
Join Date: Dec 2011
Chapter/Region:
Tri-State
Location: Long Island, NY
Vehicle:2016 GT 5.OHH DIB |
Quote:
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12-06-2012, 12:00 PM | #6700 |
Scooby Newbie
Member#: 270178
Join Date: Jan 2011
Chapter/Region:
MWSOC
Location: Bismarck ND
Vehicle:2002 Subaru WRB 380HP stock motor HTA68 |
I will vouch for anyone going E85 that its way better than 93 and will make your car a lot happier!!! I had so many issues with check engine lights on premium fuel, put new injectors and switched to E85 and a good tune and the cars been never happier. E85 FTW!!!!
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