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05-01-2007, 07:58 PM | #1 |
Scooby Newbie
Member#: 135691
Join Date: Dec 2006
Chapter/Region:
MAIC
Location: NoVA
Vehicle:2004 Subaru WRX STi 333 WHP, 325 WTQ AGILE! |
How to tell if my STi is tuned...
I bought a used 04 STi a couple of months ago. I'm getting below normal fuel consumption (around 12mpg). I have an access port under the steering wheel. Does that mean my car is tuned (Cobb?) or do all stock STis have some sort of an access port under the steering wheel? Thanks in advance.
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05-01-2007, 08:10 PM | #2 |
Scooby Newbie
Member#: 125696
Join Date: Sep 2006
Chapter/Region:
MWSOC
Location: powell.ohio
Vehicle:04 sti wrb |
what do u mean you have an accessport under ur steering wheel? Accessports you plug in and then unplug and put away. Even if you did have your car tuned by Cobb Tuning you would see the same and more than likely better gas mileage.
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05-01-2007, 09:42 PM | #3 |
Scooby Specialist
Member#: 129905
Join Date: Oct 2006
Chapter/Region:
AKIC
Location: Katy, TX & Anchorage, AK
Vehicle:2005 WRB WRX 2003 F-350SD, 7.3PSD |
hes talking about the obd port. every car from 96+ has the obdII port.. Its a diagnostic port, not just for the access port..
Maybe you need to adjust your driving habits? Also what boost level do you reach in 3rd and 4th gear at wide open throttle? |
05-01-2007, 11:53 PM | #4 |
Scooby Newbie
Member#: 135691
Join Date: Dec 2006
Chapter/Region:
MAIC
Location: NoVA
Vehicle:2004 Subaru WRX STi 333 WHP, 325 WTQ AGILE! |
I reach stock boost around 15 psi.
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05-01-2007, 11:54 PM | #5 |
Scooby Newbie
Member#: 135691
Join Date: Dec 2006
Chapter/Region:
MAIC
Location: NoVA
Vehicle:2004 Subaru WRX STi 333 WHP, 325 WTQ AGILE! |
Some people have told me the previous owner just made it run rich...can this be done without actually tuning the car?
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05-01-2007, 11:58 PM | #6 |
Scooby Specialist
Member#: 129905
Join Date: Oct 2006
Chapter/Region:
AKIC
Location: Katy, TX & Anchorage, AK
Vehicle:2005 WRB WRX 2003 F-350SD, 7.3PSD |
you are stock if you are only reaching 15psi... The previous owner most likely tuned the car, and untuned it before he sold it. Access ports and such are removable within a couple minutes. What kind of gas mileage are you expecting from a 300hp 4 cylinder?
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05-02-2007, 12:19 AM | #7 |
Scooby Specialist
Member#: 67371
Join Date: Jul 2004
Vehicle:05 BUILT 2.4L STI |
A lot higher than 12MPG. I get 21-23 MPG in a mix 70 ***37;( HWY) 30 %( City) driving fairly aggressive.
I think OP should take the car to one of those tuners in NOVA and get it tuned. |
05-02-2007, 12:37 PM | #8 |
Scooby Newbie
Member#: 127556
Join Date: Sep 2006
Chapter/Region:
MWSOC
Location: Minnesota
Vehicle:2006 WRX RomRaided. |
Get a cable and pull some logs or the ROM. That'll tell you right quick.
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05-03-2007, 10:06 AM | #9 | |
Scooby Guru
Member#: 86356
Join Date: May 2005
Chapter/Region:
Tri-State
Vehicle:2018 Aprilia Tuono v4 1100 |
Quote:
Once you do that step, post the rom or logs here and we could tell you pretty quick. ps- Do you have a BOV? |
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05-10-2007, 04:08 PM | #10 |
Scooby Newbie
Member#: 147673
Join Date: Apr 2007
Location: MN
Vehicle:06 STI |
How can I track down if someone has flashed an ECU when car hunting.
Last edited by gutano; 09-13-2007 at 10:47 AM. Reason: clarify |
05-10-2007, 04:20 PM | #11 |
Scooby Guru
Member#: 86356
Join Date: May 2005
Chapter/Region:
Tri-State
Vehicle:2018 Aprilia Tuono v4 1100 |
Open the hex file in Enginuity and look at the boost table. If it's higher than 13.5ish anywhere, it's been reflashed. There are other ways to tell too, but that should be a pretty quick way.
If you can get your hands on a stock map, you can use the compare option in ECUFlash also. |
05-10-2007, 04:27 PM | #12 |
Scooby Specialist
Member#: 56321
Join Date: Mar 2004
Chapter/Region:
NESIC
Location: Hopkinton, MA
Vehicle:2006 Honda El Camino Green |
Just download a stock .hex file and compare them. That's the only way to tell if it was modified.
Mike |
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