OFT - Example alternate maps for AT, 98RON, E85, MAF Scales
 

Note:
I now have files hosted for all MY12-16 cals here.
- On my roms you can dial in AFR perfectly on stock intake IN ONE REVISION with alternate maf scales.
- All are cal hacked from A01G/A01I/B01C/B01D, thus logging and LC work for every rom on OFT.
- No issues with unmapped DTC's or E85 cranking.
- Includes FLEX FUEL for both 6AT and 6MT.
- I've done a few MY17's now, but I've no idea about the logging capabilities for those cars on OFT yet.

ADDRESS: http://www.wayneroms.com/

While the following examples may still be interesting to some, my current files make the majority unnecessary and obsolete.



Below examples represent easily between 200 flashes to my ECU. Some of the screens are current, some seem fairly rudimentary now, but they still make decent examples.

Please see the guide below for choosing a maf scale and load limits.
http://www.ft86club.com/forums/showthread.php?t=94822


WHAT TO LOG TO DIAL IN YOUR TUNE:

Engine Speed (rpm)
Throttle (percent)
MAF Voltage (volts)
MAF g/s
Engine Load (g/rev)
Ignition Advance / Total Timing (degrees)
AFR
Commanded AFR / Target AFR
STFT (percent)
LTFT (percent)
Fuel Sys Status (2 = CL, 4 = OL)
IAT / Intake Air Temp (F)
Advance Multiplier
FLKC / Fine Learning Knock Correction (degrees)


IT'S IMPORTANT TO DRIVE 100km/60mi AT PART THROTTLE UP TO 6000rpm THEN LOG THE ABOVE PARAMETERS AT WOT 2500-7200 rpm. ONLY THEN WILL YOU BE ABLE TO CHOOSE THE CORRECT AND/OR WORK ON A MAF SCALE.


SEE END OF POST FOR DEFINITIONS AND EXAMPLE ROMS


COMMON CHANGES


O2 SENSOR SCALE (NOTE: RESCALED AXIS)

OTS (top)
v86 (bottom)
http://www.ft86club.com/forums/attac...1&d=1442115535


Radiator fan activation when car is at operating temperature and under 70kph.

OTS/Stock (top)
v86 (bottom)
http://www.ft86club.com/forums/attac...1&d=1442115535


AT THROTTLE

All my maps now have a brand new AT throttle map. The MT throttle map is more linear but doesn't work as well between shifts on the AT with longer ratios.

v100 (left)
OTS/Stock (right)
http://www.ft86club.com/forums/attac...1&d=1460613841


LOAD LIMITS (NOTE: RESCALED AXIS)
(out of date)

http://www.ft86club.com/forums/attac...1&d=1458634617
http://www.ft86club.com/forums/attac...1&d=1458634617


STAGE 1


Stg1 98 v86 vs OTS BASE TIMING DIFF

http://www.ft86club.com/forums/attac...1&d=1458634617


Stg1 AND Stg2 98 TOTAL PORT INJECTOR RATIO (COLD/HOT/WARM) NOTE: RESCALED AXIS

This is useful for maf scaling. I recommend restoring port injection at 5000 rpm to be safe.

http://www.ft86club.com/forums/attac...1&d=1458634617


STAGE 2


Stg2 98 AND E85 QUIET COLD START

OTS (top)
v86 (bottom)
http://www.ft86club.com/forums/attac...1&d=1442115672


STAGE 2 PETROL


Stg2 98 MAF SCALE
(out of date)

OTS vs v86 DIFF (top)
v86 (bottom)
http://www.ft86club.com/forums/attac...1&d=1442115672


Stg2 98 LEAN VS RICH MAF SCALE
(out of date)

v86 LEAN based on Stg1 (top)
v86 RICH based on Stg2 (bottom)
http://www.ft86club.com/forums/attac...1&d=1442115672


Stg2 98 v100 vs OTS BASE TIMING DIFF

http://www.ft86club.com/forums/attac...1&d=1460343036


Stg2 vs Stg1 BASE TIMING DIFF
(out of date)

http://www.ft86club.com/forums/attac...1&d=1442115672


Stg2 IMRE 98 vs Stg2 98 BASE TIMING DIFF

http://www.ft86club.com/forums/attac...1&d=1458634617


Stg2 98 v86 vs OTS TOTAL TIMING CHANGES (3D) (Add +6 deg adv for total timing)
(out of date)

http://www.ft86club.com/forums/attac...1&d=1442116297


E85


E85 FUEL DASH DISPLAY

OTS/Stock (top)
v86 (bottom)
http://www.ft86club.com/forums/attac...1&d=1442115733


E85 CRANKING IPW

http://www.ft86club.com/forums/attac...1&d=1442118398


E85 CLOSED LOOP FUELING MAP

OTS (top)
v86 (bottom)
http://www.ft86club.com/forums/attac...1&d=1452059881


E86 OPEN LOOP FUELING MAP

OTS (top)
v86 (bottom)
http://www.ft86club.com/forums/attac...1&d=1442115733


E85 v86 vs OTS BASE TIMING DIFF

http://www.ft86club.com/forums/attac...1&d=1442115733


v99 E85 vs 98 v100 TOTAL TIMING DIFF

http://www.ft86club.com/forums/attac...1&d=1460343036


E85 v86 vs OTS TOTAL TIMING CHANGES (3D) (Add +6 deg adv for total timing)

http://www.ft86club.com/forums/attac...1&d=1442115733

Thanks Wayno.

How hard is it to apply these same changes to the manual ZA1J___G ROMS (EU 6MT) roms?

Have you made any changes for your PSR Headers (or are they similar enough to the OpenFlash headers that they just work)?

Yep, any G rom.

Most UEL are the same. The ethanol in our E85 is mixed with worse fuel than US though, so there's some timing taken out for knock a few people have logged at 6800rpm, even though our E% is higher.

You the man @Wayno. Thx

I dont get it so this is only for the the automatics? or can it be used for manuals?

The tables for fueling/timing/fan temps/IAT compensation ect are same for manual/auto just copy them across. Assuming you have same header type.

Throttle tables are different between auto/manual.

Their is an E85 G rom attached to the first post

Nice work Wayno.

More work done to E85 tunes. OP updated.

Did you change all/most of the tables?

Timing, fuel, cranking, do a compare with the old one if you downloaded it.

Good work.

I do wonder if there is any further discussion on long term effects of running lean even on low load but for extended times? What to look for when logging, what could go wrong? Target AFR 14.7? Is this both DI and indirect injection?

Also what happens during the warm up phase?

Sorry lots of questions :)

If you have a look at the stock rom fueling tables you will see it runs leaner than these tunes for higher rpm and loads.

The OL AFR fueling tables are the target afr, their are tables for the di\pi ratios but the overall target afr is determined by the ol fuel table and a couple of closed loop offset tables when running in closed loop.

Ethanol generally results in lower exhaust temps than petrol.

As always these tunes are provided free with no guarantee, run at your own risk.
@Wayno and myself have been running them for a few months and mine is running leaner tables than the ones posted here, however everyones fuel blends are different..

always check your tune is running reasnoble fuel trims less than 10%, your wot afr follows open loop fuel table and little or no knock and iam at 1.

by warmup phase assume you mean high rev cold start, as far as we know this is just to heat cats for emmisions purposes, you still need to give you car about 10 minutes to get coolant and oil to operating temps, regardless of what alterations you make to starup phase

Warm-up I usually drive very light throttle just under 3000rpm, I wondered how this could be affected by a leaner blend.

stuff all i think, have not noticed any change

Damn I have no idea what any of that means

It means my fuel economy with the off the shelf tune on AT was
10L/100km displayed; 13.3L/100km (17.7MPG) actual.

With the manual transmission throttle map I got my fuel economy down to
9.4L/100km displayed; 12.5L/100km (18.8MPG) actual. Saving: 0.8L/100km

Then by modifying the tune I got from that point down to
8.5L/100km displayed; 11.3L/100km (20.8MPG) actual. Saving: 1.2L/100km


If you look at this log, any time the load is between 0.6 and 0.8, it's using less fuel than before.

http://datazap.me/u/wayne/206-stg2-u...=0&data=1-4-11

Wayno, do you or Steve have a copy of this for a manual at all? I am currently running the OF header and E85 but don't have the confidence to mess about changing tables etc with the OFT as I am sure I would bugger something up :confused0068:so am just running their off the shelf map.

Cheers

Pretty sure their is a G rom E85 UEL map in the zip file wayno did , buy it not pm me and i can send you one

I've many revisions so I'm not keeping a G rom up to date unnecessarily.

There were some areas knocking because the timing needed smoothing out a bit on my setup.

Also running 33 deg up top so it doesn't knock instead of Shiv's 33.5.

http://datazap.me/u/wayne/206-stg2-u...om=10750-10809

Updated zip file in first post. Graphics not updated. Now down to 10.5L/100km (< 8L/100km displayed).

@Wayno: very minor, but imho for this thread to be better searchable, maybe worth to update typo in thread name ecomony>economy.

Would love to see an A01G version of this update,

I noticed when doing a comparison between A01G v23 and this A01I v33, it showed 41 changed tables and 33 missing. Some tables weren't exactly the same either like Base timing idle (in gear) so would copying down fueling, timing and IAT compensation be sufficient?

Didn't i list the tables changed in the first post?

AT/MT are never going to have all the exact same tables of the same size and definitions to match. All the ones changed are transferable though.

Yes you did, even included in the readme...http://i62.tinypic.com/2nb6n11.png

Thanks for those tunes Wayno, I'm running your petrolmap (with a few modifications to better suit my car) and some of my fellow Belgian GT drivers are running on your E85 maps. They work like a charm. :cheers:

Cool, thanks!

The latest 98 map has timing added back in instead of blanket pull from the entire thing. I went back through all my Stg1 98 logs and redid it from scratch with the new methods I discovered. Latest should have a slight increase of power and still keep IAM up. If you have good fuel, just copy the entire base timing table from the OTS tunes.

The E85 map was rapidly evolving and updating every few days, but should be final now. If they have a version earlier than v33, they should definitely update. Best to load both in RR and compare to see the changes. Timing was too conservative in previous versions.

v33 (no letter) is the file to flash.
v33F is the same tune as v33, except that KCA has been flattened and Base Timing compensated. This is the one I adjust, then transfer the changes to the other rom.
v33W has my personal MAF scale and is experimental - UEL headers, stock airbox, stock intake hose, stock intake snorkel, stock cat back. CL MAF portion copied from Stg2 petrol, OL MAF >= 3.7V * 0.975.

98
http://www.ft86club.com/forums/attac...1&d=1429145206
E85
http://www.ft86club.com/forums/attac...1&d=1429144299

Hi,

I used your E85 G-rom earlier, when you first released it, but it gave me some high fuel trims (close to -10% at OL). I think it might have been because of the MAF sensor scaling. With the OTS E85 map my STFT and LTFT stay close to 0, that means in the range from -3% to +3%. Only at highway speeds and at OL LTFT stays at a constant of -4.68%.

I'm not that good at this yet, but try to pick up and learn a lot about diagnostics an tuning, so bear with me here.

I want to try to apply your tune again but this time without the MAF scaling. Would it be okay just to copy over the following tables to my A00G rom?

- Primary Open Loop Fueling
- Primary Open Loop Fueling Additive
- CL Fueling Target Compensation A (Load)
- CL Fueling Target Compensation B (Load)
- Cranking Fuel Injector Pulse Width A (ECT)
- Cranking Fuel Injector Pulse Width B (ECT)
- Cranking Fuel Injector Pulse Width C (ECT)
- Cranking Fuel Injector Pulse Width D (ECT)
- Cranking Fuel Injector Pulse Width E (ECT)
- Cranking Fuel Injector Pulse Width F (ECT)
- Base Timing B
- Timing Compensation (IAT)
- Timing Compensation A (ECT)
- Timing Compensation B (ECT)
- Radiator Fan Modes A (ECT)
- Radiator Fan Modes B (ECT)

Also I guess that the -4.68% at highway speed means it's running rich, right? Which tables would I need to correct for that?

When LTFT reads around -5% and STFT reads about the same value just positive instead, does that mean it evens out the LTFT trim? I guess it will learn from that in the long run..?

Sorry for the noob questions :)

Yep, the v33 I uploaded has the off the shelf 2.0 MAF scale. You must have the "just right" setup for good trims like those.

Required tuning changes:
- Primary Open Loop Fueling
- Primary Open Loop Fueling Additive
- CL Fueling Target Compensation A (Load)
- CL Fueling Target Compensation B (Load)
- Base Timing B

Recommended utility changes:
- Timing Compensation (IAT)
- Timing Compensation A (ECT)
- Timing Compensation B (ECT)
- Radiator Fan Modes A (ECT)
- Radiator Fan Modes B (ECT)
- Total Injection Ratio Port Cold
- Total Injection Ratio Port Hot
- Total Injection Ratio Port Warm
- Cranking Fuel Injector Pulse Width A (ECT)
- Cranking Fuel Injector Pulse Width B (ECT)
- Cranking Fuel Injector Pulse Width C (ECT)
- Cranking Fuel Injector Pulse Width D (ECT)
- Cranking Fuel Injector Pulse Width E (ECT)
- Cranking Fuel Injector Pulse Width F (ECT) (select and copy the values for this one instead of using copy table)

Okay, thanks! I'll try that tomorrow. :w00t:
The thing I also mentioned about the trim staying at -4.68% at highway speed or OL, would you try to correct that, if it were you? And how would you go about that?

A bit of topic: I'm thinking about increasing the idle rpm a bit to around 800 or 900 rpm, just because I don't like the sound of the engine and exhaust (don't really hear the stock exhaust) at that low rpm, especially when the a/c compressor kicks in and brings the engine out of balance. Would that give any implications with anything?

With ztan's di/pi fix, i have stock AT 700rpm idle. Imo you're wasting 25% more fuel for no reason. Get some headers and plug up the sound tube and you'll hear the exhaust.

You don't need to correct overall trims, you only need to correct AFRs. If you're hitting 12.5-12.0 in OL, don't bother.

Were you running eflex?

Is this the di/pi fix you mean? http://www.ft86club.com/forums/showp...6&postcount=21

Don't want to break the warranty just yet, as I've only had the car for a year and driven 16000 km, so I'll wait a couple of years with the header.
I know it would be burning some more fuel, but it just sounds to me like it should have had a few more idle rpm from the factory. When the a/c compressor starts when I'm just about to pull away at a traffic light - right as I'm lifting the clutch a bit and just before I get on the gas - it sometimes gets a little choppy... And I'm not standing around in idle all day, so guess I wouldn't even notice in fuel economy ;)

Looks like AFR stays between 13 and 12 in OL, just reaching 11.48 at the last reading at red line...

Sorry, what is eflex? You mean flex-fuel kit? If that, then no :)

The idle is heaps smoother when your running on di only, bumping up the idle was a quick fix.

Running on di helps with takeoff as well less jerky as does scaling maf and getting your afr correct and fuel trims low.

We are running E85 that guaranteed 85%.

you need all the changes to achieve the better economy not just the idle fixs

Okay, I'll try the di/pi fix. But it's not like idle isn't smooth when nothing intervenes. I just don't like the ticking sound from the engine when at idle rpm. Therefor I thought about increasing the idle rpm to 800-900 rpm, so that I would hear a little more exhaust note. And my thought was that at the same this would maybe remove the rpm drop that occurs when the a/c compressor kicks in.
Will the di/pi fix remove this?

I am planning on copying all the recommended tables and not only the required ones. Will the di/pi fix have a negative impact on fuel economy?

Our main aim here is to get better fuel economy on E85
so we have leaned out lower load low rpm area of the maps ie OL and CL fuel tables below 0.8 load and 3000 rpm
the running full DI at rearly low loads ie below 0.2 man or 0.3 auto smooths idle and the transition off idle hopefully allowing you to drop idle from 750 to 700 or even back to 650 (stock idle on manual).

this and a couple of other tweaks has resulted in city economy of about 9l/100km as opposed to 12-13 on original tune.

ticking sound is likely injectors firing, chirpy sound is likely high pressure fuel pump, both sounds are "normal" on this car, unless you have spun a bearing :-)

It been cold here like below 25C (well thats cold for us) so not been running A/C since i tweaked the di/pi ratios, but it may help the dip when a/c kicks in .

I've applied the changes now, but it's still in the trim learning phase.
It already feels much smoother and looks like there is no impact on the rpm when a/c kicks in :thumbsup:

So you just zeroed the 0,2g/rev column in the three Total Injection Ratio Port tables?

Yes, it was actually already applied in Wayno's tune, so I just copied it over.

I did a 20 minute log on my way to work today. It was mostly city driving with 3 minutes on the highway. Could you please have a look at it, because I see some fairly high fuel trims at low rpm and load - also STFT counters LTFT by quite much a times. IAM stays at 1 and no knock according to FLKC and FBKC. When I get on the gas, the trims stay within +- 3%.
http://datazap.me/u/cawith/city-driv...ata=1-7-8-9-11

The high correction at idle rpm og kick in, is that due to more or less ethanol than 85%?

Could you include the RomRaider definition file in your zip file so I could open your rom in RomRaider? I'd rather copy and paste tables than change each and every cell one at a time.

I would also like to praise your good work, and add to it by including a cold start fix and some AVCS tuning for better volumetric efficiency at low rpm's and better power at higher rpm's.

No

Yes high trims can be due to E% changes and maf scaling and large intake air temperature fluctuations.

you can manually tweak the idle area by lokking at the maf volts values at idle, then look at your average fuel trim if its 6% positive then add say 4% to the values either side and 6% to the idle flow value. if it was negitive then subtract.

6% at idle is not to bad, it will vary due to intake air temp variations which can be large when sitting in traffic.

to get it better you would have to do your own maf scaling on your average ethanol content.

Got it. I was looking for RR_ZA1JA01l, not RR_ZA1JA01I.