What do mean it no longer has AFR numbers in it?

I had issues with that patch on the 9653 variant. Reverting back to the downloaded rom fixed my issue. Not sure if it was something I had done. But I had issues with it.

 

Well I mean that the fueling is being controlled by the VE table is it not? Does the Main fuel table still have any function in the fuel calculation?

 

Absolutely. All the speed density patched roms do is replace the MAF signal with a calculated air mass (VE, temp, pressure). All you are doing with the VE tables is defining that calculation to be specific to your setup.

 

I tune my ve, so that my MAF map matches exactly....makes adjustments real easy later on.

 

That's how I tune it as well. It just makes everything better IMO, but as always, there are a number of ways and methods that people implement. But having accurate airflows, VEs, etc matching to what was measured by the MAF previously should only help in the long run.

 

cant seem to open the bin file up, I copied all the xml files to my rommeta folder and still no luck, am I doing something wrong here?

 

Im back on 2d SD and have been using the "Easy Speed Density" method. Basically only tuning Maf Compensation and fine tuning with the 2d RPM VE table. Seems to be working fairly well. Fuel map is within .2-.5 of logged AFR and load follows boost (right now it hits ~260 and tapers to ~250, 24-22psi), which seems to make more sense to me for some reason. I never did it 100% like that on the 3d version. But might if I convert back.

 

Get some sort of error or does EcuFlash close out on it's own? or what? You should have the XML files from the previous tephra stuff I think, but maybe you don't have to...I know I do have the 94171015 and 94172015 or whatever it is, so maybe that could be it.

Yeah, if you want to make changes to the 2D one, you use VE, MAF Comp, and KPA 2 load, to sort of create a 3D map out of those....the beauty I see with the 2.0, is that you can set kpa2load as 1:1, MAF comp all to 100, and then purely tune AFR's with 3d VE. My tune was so far off of what I had on MAF, so I just rescaled timing back to what it ought to be (based on my stock lancer ROM). I think it's actually better, since it's a more accurate representation of the amount of air and pressure going on in my engine. Before, my loads were artificially inflated I think, so a total overhaul was for the best in my case.

Like l2g....(you know who it is) said, if you've got a good running timing map, probably best to fit your kpa2load onto that existing load calc'd from MAF. If you're okay rescaling timing, you can go to 1:1 values, and then it's all 3d ve based.

Side note...I finally have a really awesome running 2.0 SD tune. My BOV is stock 9, but VTA and it sounds wicked.

 

Well my car was never tuned on this ecu and a maf, since its a 1g and i went straight to SD. Just want to make sure im understanding what you guys are saying.

So Main Map Fuel, Hi Octane Fuel Map, for example 220kpa, 7000 has a value of 10.5
You guys are adjusting the VE of that same cell location to achieve that afr (or pretty close to it)? Of course assuming that AFR value is what you are looking for

Man LiveMap would be awesome for tweaking that table.

On another subject, i can go ahead and apply MrFreds O2 patch, to allow my Wideband to do all the work and unplug my narrow band?

 

The one "gotcha" to look for is the 3d VE map is rpm vs KPA, not load, so you have to adjust ve at the KPA value you are lookingn at. I was confused at first, because the load is typically close, but yeah, easy enough.

 

the feed back I have is that if you sit at idle and watch live log on evo scan when it hits 2600 rpm ish it cuts injectors as duty and pulse width zero out and cars surges..

No doubt its all to do with this bug but it definately cuts fuel.!!

 

Which rom, 9653? I had that buckin issue with 9653, so i went back to 9417. RoadSpike said he thinks it's got to do with the rom not coming with a map sensor originally, but hasn't had time to research it further.

 

the closer i macthed the map vs laod the better it is with out doing the ve/rpm box takes a lot of logging and guess work though since i never had a maf on this car.

 

are you saying you had the stutter with the 9653 rom, but not the 9417? I never tried the 9417 3D, but Im on the 2d 9417 now.

 

Yes, I had stutter nearly instantly from the time i started driving until I got back to the house. I've been on 9417 for like....3 weeks now, not a stutter yet.