Leafy

iTrader: (1)

Tim how did you wire the wideband into the harness and make it work right? I know you could wire it to the tgv position wires and log that voltage but RR doesnt support user generated PIDs so you must have to do the math in your excel sheet, that I was kind of a deal breaker for me. Although someone was working on adding this support a while ago and I havent checked back in a long time.

re: the factory sensor. Widebands are also dependant on the exhaust gas pressure, the pre-turbo sensor once you get into boost is going to be skewed (rich iirc), once the exhaust gas pressure shoots up. In theory, you could use pre and post turbo widebands and some math to estimate exhaust gas pressure, but the stock wideband doesnt read rich enough.

18psi

iTrader: (76)

It reads down to 11. And even stock these things dip lower than that past 5k

the stock o2 calibration is configurable, why wouldn't you be able to just wire in and re-calibrate like Timmah seems to have done? I kinda get how it works, just never tried it

hi_im_sean

iTrader: (3)

i lied, $10 and free shipping. i got mine off ebay becuase i didnt want to wait from amazon. it was $19 total to get it here(AZ) in one day from illinois.
OBD2 OBD II Diagnostic USB Cable for KKL409 1 VAG com 409 New Free Shipping | eBay

and here is the amazon listing, note the first few reviews.

Braineack

iTrader: (62)

I mean I'd gamble with $10. I paid something like $170 for my Tatrix and I've used it like thrice.

hi_im_sean

iTrader: (3)

kind of my thought. if i start writing to the ECU, i might go for the tactrix. if i dont end up having to get a motor, i might do some "email tuning" in the near future as ive never been a fan of the cobb OTS.

Leafy

iTrader: (1)

cant you use access port race tuner to write to the ecu with your APv1? or is that only an option on the v2 and later.

Braineack

iTrader: (62)

I have no idea what I'm doing and pretty much came up with my own tune.

I borrowed a lot from 18psi and others online, did a bit of research and came up with something that worked for me.

the biggest changes were to the AVDC and DBW maps. I've been pretty darn happy with the tune. I'd still like to tweak the DBW map slightly, it's aggro, but other than that it's been a huge improvement over stock.


Hey vlad, does the WRX boost solenoid work just like one on MS? I've toyed with the idea of installing a switch on the solenoid to turn it on/off so I can run wastegate boost when I'm try to be a cheap jew to get an extra 0.25mpg and then flip it on when I wanna run 18psi.

18psi

iTrader: (76)

lol
it will pop a code if you cut power to it, and the last time I disabled that code it disabled the 3port from working, dunno if it was just that car (06 sti) or what but it didn't work for me

and Leafy, you mean Accesstuner Race, and no it only works on V2 and up

Leafy

iTrader: (1)

why not just scale your boost target and desired torque maps to achieve the same thing. I got my lc1 to work again by reflashing the firmware 3 times and stuff so I'm back to hunt for gas mileage in the tune. getting 21 mixed on winter fuel in no bueno.

18psi

iTrader: (76)

if you want better gas mileage from a turbo subaru go get a 15 wrx.
otherwise stop wasting time

Braineack

iTrader: (62)

i dont think I'll be able to acheive the same without effecting performance when i wanna toy around.

i always average 1-2mpg less in winter. I've been averaging 22-23mpg all year though. That's pretty much 80% rush hour hwy driving + 20% city.

Leafy

iTrader: (1)

You'd only be adjusting the target boost below 50% throttle though. Not really going to effect your performance its an AWD pig, you're not going to use under 50% throttle when thrashing it.

My mileage stays the same between summer and winter because my snow tires are lower rolling resistance than my summers.

18psi

iTrader: (76)

I've tried it, and it sucked for trying to drive quickly. Makes the car feel bi-polar. did not like

TurboTim

iTrader: (9)

Oh come on guys, you know I'm not that slick.

Under the "external sensor" tab I click on AEM UEGO which adds it to the parameter list, where you can view/record it along with all the other fun stuff. So the Vag com cable goes to one USB port, my AEM wideband goes to another USB port. I follow the AEM instructions on how to wire their sensor to a serial port, then use DIYAutotune's serial to usb converter.

Leafy

iTrader: (1)

Lol I guess its the driving style. If I'm driving hard with the wrx theres only like 0% throttle or 70-100%. The stuff from 1% to 69% doesnt really exist. Huck it in and use as much power as you can without spinning the inside front wheel too much, which most of the time on sticky summer tires is nearly full throttle with tiny ***** td04 power.

Its not like I mean fully off until a certain throttle position. Right now my boost is more or less linear with throttle position. Making it linear above like 60%, basically nothing from 0-30% and then a blend in between the two should still drive well, you're just going to spend a couple days getting it just right.

Dammit tim. haha. Thats basically what you do with the innovate stuff except I just plug the stereo jack connector into my usb to serial converter.

18psi

iTrader: (76)

lol

so exactly like the rest of us
One of my favorite things about these cars is the part throttle torque onset.
I've tried what you're saying, and me and scott even discussed it on many occasions, in theory it sounds cool but in application it sucks. Just my .02

Braineack

iTrader: (62)

FLAT OUT.

i pretty much drive 0-5% throttle.

18psi

iTrader: (76)

if that is true then disconnecting the bcs wont do anything

Braineack

iTrader: (62)

well not on hills. :P

gesso

iTrader: (1)