OFT Openflash V4 tunes released for 2017+ with Launch/FFS

[BFIFE22]

I'm going to do some datalogging in the next couple of days to take a look at AFR vs Commanded AFR. Been doing some WOT runs with IAM at 1 and rarely ever get any FLKC, and if I do it's been -.65 for a split second but not enough to lower IAM. Top end feels stronger than the previous V2 tune I was running. Using 93 Octane. Loving the V4!

[Firecruiser]

Is there a reason that the new tunes have all of the camshaft/crankshaft position codes disabled? I see it is also disabled in the v2 A01I based tunes but not in the v2 B01D tunes.

[Somerandom18]

Originally Posted by Firecruiser

Is there a reason that the new tunes have all of the camshaft/crankshaft position codes disabled? I see it is also disabled in the v2 A01I based tunes but not in the v2 B01D tunes.

Also curious. My guess was they add enough timing to trigger a CEL but who knows.

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[elBarto]

Those are disable in a stock A01I rom, since the V4 tunes are based upon Euro/Aus Rom's they are disabled with the V4 US versions as well. (AT = A01I , MT = A01G).

[finch1750]

Originally Posted by elBarto

Those are disable in a stock A01I rom, since the V4 tunes are based upon Euro/Aus Rom's they are disabled with the V4 US versions as well. (AT = A01I , MT = A01G).

Can they be added back on the user side? Would we even want to mess with it? I know the camshaft position sensor can be a problem with early zenkis

[stlgrym3]

Just flashed to v4.03 Stage2+ after installed Tomei EL header yesterday. So far so good, knock on woood X 3. Haven’t been on open road yet thanks to weekday LA traffic, but the car definitely feels quicker off the line, and even without UEL’s Subaru rumble, it sounds so nice pairing with my Greddy SP catback. Big props to Shiv for releasing v4.03 which now supports 2017 AT.

[sandy s]

O K It looks like these new tunes will only work on US cars.Is that correct??? Can I do anything to download them on a new in Japan car??

[Lincoln Logs]

Working on re-scaling the MAF for a Perrin intake for the Stage 2+ E85 tune, is there any easier way to copy & paste all the values? I feel like I'm missing something, the copy/paste function is not working inside ROM Raider and going one by one is not, uhh, ideal.

[elBarto]

Originally Posted by finch1750

Can they be added back on the user side? Would we even want to mess with it? I know the camshaft position sensor can be a problem with early zenkis

Can't see why not. Just put them in 'On'.

[elBarto]

Originally Posted by sandy s

O K It looks like these new tunes will only work on US cars.Is that correct??? Can I do anything to download them on a new in Japan car??

Open your rom, open the V4 rom and copy paste the following tables:

Originally Posted by Kodename47

Just so the info is here as well.

The Stage 1 MT has 10 changed tables:
2x MAF Correction After Start (Cold Start Adjust)
5x Idle Speed Changes (Cold Start Adjust)
Target Throttle Plate Angle (Only changed above 6400)
Ignition Timing Post Start (Cold Start Adjust)
P0420 Code is disabled

The Stage 2 has, in addition:
Open Loop Fueling (Richer at high load low RPM, Leaner at high load high RPM)
LTFT Limits (Reduced to +/-2%)
Base Timing B (Less Timing at high load high RPM)
Knock Correction Advance (More Timing at high load high RPM)
Timing Comps Per Cylinder A & B (Now all 0)
FBKC Range (Enabled now set above 3k RPM)
Intake and Exhaust AVCS Changes

The AT is pretty much the same as the above, just no P420 defined and P0700 code is disabled.

Save and flash

[nocoolname]

Originally Posted by Lincoln Logs

Working on re-scaling the MAF for a Perrin intake for the Stage 2+ E85 tune, is there any easier way to copy & paste all the values? I feel like I'm missing something, the copy/paste function is not working inside ROM Raider and going one by one is not, uhh, ideal.

Defs are different so you can't open both tunes at the same time. I just copied from my original tune into excel, changed defs and opened the v4 file. Checked the table to make sure it looked right then copied and pasted from excel.

[Jasonb]

Originally Posted by Firecruiser

Is there a reason that the new tunes have all of the camshaft/crankshaft position codes disabled? I see it is also disabled in the v2 A01I based tunes but not in the v2 B01D tunes.

My guess is because of the cold start delete.

[John27]

when i start car in morning sometimes when putting the car reverse rev start to flux between 1k-700 any one else have this problem but after one min the car goes to normal and have no problem with car ?

[N_AL_spyder]

Originally Posted by John27

when i start car in morning sometimes when putting the car reverse rev start to flux between 1k-700 any one else have this problem but after one min the car goes to normal and have no problem with car ?

I've seen the same thing, but it happened after warm and hot start for me.

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