2002 WRX de-fault coding

[91 XR7]

Got a project on the go using a 2002 WRX Motor in a '59 Porsche 356 Repica.
Engine is like 95% stock i guess? (Stock turbo inlet, Custom MAF housing (OE ID thou), Custom 2.5" exhaust of maybe 6' in length using a Cat and Straight through muffler)
Yes a Dyno tune would nice thing, but funds don't allow the $1000 to do it. But the thing that's annoying is the trouble codes, Since the Evap system isn't being used, those codes are coming up so i'm wondering what truly is needed to remove these codes from a 2002 WRX, tactrix cable and software? I can find days of information on tuning but hardly anything on this part.

Also not WRX related, but subaru, would the above setup to remove codes work on other year/model Subaru's (Say 2003 Legacy NA 2.5, and 1999 Forester NA 2.5 which are coming up next) The Boss man would like the idea of spending say $180 for the Tactric Cable if we can get rid of these codes, like even P1507 bought on by the lack of a neutral switch

Thank you

[zax]

That sounds like a very fun project!

A Tactrix cable will certainly meet your needs. With ECUflash you can disable the codes. Furthermore the OpenPort2.0 will work with a multitude of Subarus. The full list of compatible ECU Definitions is available from Tactrix.

Oh, also be sure to upload pics when complete

[Donkey]

The Tactrix will work fine on the WRX but not the other two vehicles.

[zax]

To clarify Donkey's statement:

This is a common question that does not always have a simple answer. There are really several levels of EcuFlash "working" with a particular car, i.e.

Can EcuFlash read and reflash a ROM for this car?
Do XML definitions exist for this car's ROM so that I can edit various maps and tables from within EcuFlash?
Is EcuFlash able to log from or provide other supporting tuning functions for this car?
In general, EcuFlash can reflash a much larger number of cars than there may exist XML definitions for. This means that you may be able to read and write from some cars, but not edit anything until a XML definition is made by us or someone in the larger OpenECU community. Often times the current release of EcuFlash does not have the most current XML definitions in existence, and you may need to visit various forums to find what you are looking for. An upcoming version of EcuFlash will allow you to automatically submit any new ROMs you find to Tactrix so that we can more quickly create XML definitions for these.

Here is an incomplete list of the known cars that EcuFlash can reflash currently:

Mitsubishi
Airtrek Turbo
Brilliance
Eclipse GS/GT/GSX
EVO 5/6/7/8/9/10
Galant
Lancer
Magna
Mirage
Montero Sport
Outlander
Pajero Sport
... basically any Mitsubishi ECU based on a H8, SH-2, or M32r processor
Subaru
Baja
Exiga
Forester NA(05+)/turbo/XT
Impreza NA(05+)/WRX/STI
Legacy NA(05+)/GT
Liberty NA(05+)/GT
Outback NA(05+)/XT
Tribeca
... basically any Subaru ECU based on a HC16, or SH-2 processor

(taken from Tactrix's website) The OpenPort2.0 may be able to read the OBDII protocol from the other cars, but without definitions, the device would be useless. There may be someone who has written the XML definition for the older Subarus, however. I would recommend contacting Tactrix for more details.

[Mikie13]

In for pics of this project! Looks awesome!

[Calvinball]

Interesting project! Please keep us posted!

[91 XR7]

The Tactrix will work fine on the WRX but not the other two vehicles.

they say you can't "tune" a 2003 Legacy, but don't say you can't disable Fault codes..

Going by the guy i got a reply from at Tactrix: "You may use our products (EcuFlash+Openport 2.0) to disable individual or all codes for supported vehicles. EcuFlash does NOT currently support the older MY99/00 JECS processor ECU's. It only supports the DENSO range of ECU's which have been used since 2001. " Along with "*Essentially any Subaru ECU based on a HC16, or SH-2 processor. " at the end.

Now how does one determine which ECU is a Denso, HC16 or SH-2 processor based?

On the car itself, i'll have to see about getting pictures of it. It's nearly done too, just trying to work out the ECU bugs (codes) sad thing is, putting a 1995 Porsche 993 3.6L in was easier and no real ECU issues

a 2002 Legacy 2.5L ? top side
P1100071 | Flickr - Photo Sharing!
a 1994 2.2L underside
P1100157 | Flickr - Photo Sharing!
the WRX to be added after photos

[Alexmartynyuk]

they say you can't "tune" a 2003 Legacy, but don't say you can't disable Fault codes..

The codes are disabled in the rom, so if you can't read or flash then you can't disable them.

[91 XR7]

The codes are disabled in the rom, so if you can't read or flash then you can't disable them.

Well i guess it's more a question of what ECU it has, is it a Denso or Jec ECU?
Heh hopefully it will work thou

[Donkey]

Well i guess it's more a question of what ECU it has, is it a Denso or Jec ECU?
Heh hopefully it will work thou

Then it is a question of making the definition for it. See above the list of ROMs currently supported. Ecuflash is very powerfull and can be used on a ton of vehicles,once you have a definition for said vehicle. The definition comes from reverse engineering the code.

[91 XR7]

Well from looking it up on line, the ECU is a JEC based one, so it's a no-go to begin with

I think this is going to be a fun little adventure, with a lot of reading and trying to understand how everything works. I'm still amazed that usually the only real problems i have when swapping in a Subaru engine is a few codes (which usually result in the car going into Limp mode ) but typically it's the P1507 code that comes up, expect for the WRX motor which is always a P0457

Thank you all

[91 XR7]

I also find it sad that the OpenECU.org forum will not accept my Email address so i can't register to post on there. it's a valid email address too

[zax]

Well from looking it up on line, the ECU is a JEC based one, so it's a no-go to begin with

I think this is going to be a fun little adventure, with a lot of reading and trying to understand how everything works. I'm still amazed that usually the only real problems i have when swapping in a Subaru engine is a few codes (which usually result in the car going into Limp mode ) but typically it's the P1507 code that comes up, expect for the WRX motor which is always a P0457

Thank you all

Another suggestion to you: I would replace the stock UP (pipe between exhaust manifold and turbo hotside) with an aftermarket catless Up pipe, since it is a source of failure that can cause significant engine damage. This is most easily done with the motor out of the car. Furthermore, I would replace the Timing Belt/Water pump (if the motor has >60K miles) while the motor is out of the car to improve the longevity.

[91 XR7]

Another suggestion to you: I would replace the stock UP (pipe between exhaust manifold and turbo hotside) with an aftermarket catless Up pipe, since it is a source of failure that can cause significant engine damage. This is most easily done with the motor out of the car. Furthermore, I would replace the Timing Belt/Water pump (if the motor has >60K miles) while the motor is out of the car to improve the longevity.

Well the Up-pipe is stock but de-catted (tons of fun), Also the engine was rebuilt before it went into the car

just a few pictures of the engine in the car. just a reminder the car is still in the testing stages, so it's not cleaned up yet




and just one of a car we built with a least 280hp 3.6L 993 motor (in a car that weighs @2200 pounds)