I also had an 05 Legacy GT Wagon 5 speed and used a tactrix cable, but unless you have the definitions from somewhere, it's useless.

What cars work with EcuFlash?

Tactrix Inc - Makers of Openport and EcuFlash ECU flashing and tuning software and hardware.

www.tactrix.com

 

I found a 2012 legacy 2.5i mt definition, and a 2011 Subaru outback 6mt def. I'm wondering how different they could really be? I'm thinking about giving it the old college try. But with my luck the car won't start and I won't be able to flash my original back on there. 😐

 

Good luck and let us know the outcome - you're probably not the only one looking to do this. But without a turbo, doing a self-tune is not likely to give you enough improvement.

 

I'm looking to shut off the EGR cel. I did a delete. Also I want to remove any downstream 02 corrections so I can do a cat delete and shut off the the p0420 that will follow. As far as performance i'd probably just polish my heads, eliminate any air friction in the intake manifold/exhaust manifold, timing is set very conservative by Subaru for all elevations, weather, etc. you can really wake these na motors up. People who don't do the p&p work get minimal results. The older aluminum ej253 intake manifolds flow a lot of air when you sand and polish the inside. I blew a healthy auto transmission doing that from the huge increase in low end torque. 😆 Hell, switching to full synthetic oil in the diffs, engine, etc I feel a nice difference.👌 people really underestimate air friction and physics when it comes to gains.
I'll let you know if I try with the rom, it "should" work 😬. I have my 08 outback for backup if I brick this one.

 

Improvements can be made to the N/A engines. It's all in the fueling, timing and AVLS adjustments.

The definitions for same gen cars with the same drivetrain can be different between years. The definitions for my 01 VDC would not work on an 03 VDC.

 

Yes it will be very interesting to see what you can get out of it. @west_minist owns XRT tuning and he's done good work with NA subarus.

Home - Xtreme Racing Tuning

xtremeracingtuning.com

 

UPDATE:
I ended up paying someone to give me my specific definition, I imagine they merged it or copied it from a pre-existing already working ECU flash definition. I was able to flash the car today. Now I can edit parameters in ECU flash as well and do force pass, timing, fuel, etc. I'll try to upload the new definition that I had to use if anybody needs it. Just let me know.

 

Dropbox

www.dropbox.com

 

Dropbox

www.dropbox.com

 

That's fantastic news - glad your persistence paid off.

When you're satisfied with your ECU edits, can you post some of the theory and practice behind your DIY tuning and what it's accomplished for your car? Resources?

 

I will, I'm going to start data logging and using the road Dyno , also, I'll post up my results. I'm going to post my tuners email, he said you can really get some power out of these cars by deleting the PZEV logic. You can directly reach out to him if you want. I asked him if I could post on this forum.

 

If you have this car or are experiencing this kind of problem, download these two XML files. Paste them in: rommedata, Subaru, outback 2.5i folder. You have to point ECU flash to the files. It should be able to read your ROM after that...

 

This is the tuner (Matt) in Australia
iamhappy46@gmail.com

 

One thing that helps performance is letting peak combustion temperatures get higher, but EGR is used to lower combustion temperatures to prevent oxides of nitrogen from forming. I used to block off EGR in naturally aspirated cars before.