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Old 06-12-2004, 01:02 AM   #1
thechase
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Default UTEC on JDM ECU

I tried searching and asking in other forums but for some reason no one knows so once again i trust you guys and you always seem to come through for me. So here it goes. Does anyone know if the UTEC will work on JDM version 8 ECU's? Or will i need a JDM version of UTEC? It's a simple question but all i've been able to come up with is "maybe".
-Chase
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Old 06-12-2004, 10:01 AM   #2
pegdrgr
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I replied in your other thread, so here is a repeat.

YOU DEFINATELY need the AUS/JDM STi UTEC. You should be able to get one from TurboXS here, although when I got mine Nathan implied that they do not always have them in stock. Give them a call and tell them what you are planning and Either Nathan or Germaine will let you now what all you need, and if they have it.
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Old 06-12-2004, 12:23 PM   #3
thechase
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Thanks pegdrgr!
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Old 06-13-2004, 10:52 AM   #4
Richard Sierra
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Quote:
Originally posted by pegdrgr
I replied in your other thread, so here is a repeat.

YOU DEFINATELY need the AUS/JDM STi UTEC. You should be able to get one from TurboXS here, although when I got mine Nathan implied that they do not always have them in stock. Give them a call and tell them what you are planning and Either Nathan or Germaine will let you now what all you need, and if they have it.
Not correct, I have the US WRX UTEC on a RA ECU, it works fine.

You do have to directly wire the AVCS wiring (if you are using it) into the ECU instead of the UTEC.
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Old 06-13-2004, 12:28 PM   #5
pegdrgr
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You are better off with the JDM STi UTEC. If you are going to buy one this is the UTEC to get for this setup. I will not say anything more than that.
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Old 06-14-2004, 07:39 PM   #6
Richard Sierra
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No question the JDM UTEC is best if you must buy one. To say you "DEFINATELY" need one is misinformation.
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Old 06-14-2004, 07:59 PM   #7
pegdrgr
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Agreed that it was misleading, although I still say you "Definately" need it. Yes you can get around it, but anyone ordering a UTEC for this purpose Definately NEEDS the JDM/AUS STi UTEC.
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Old 06-15-2004, 06:22 PM   #8
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I run the Rev 6b US WRX Utec on my JDM Type RA Spec C ECU.. It works perfectly. Older Utecs did not have all the pins on the connectors. Later versions had the pins and passthrough signals. If you have a Rev6 Utec you are fine.


C
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Old 06-15-2004, 10:30 PM   #9
pegdrgr
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For pass through, yes.


Edit for spelling

Last edited by pegdrgr; 06-15-2004 at 11:11 PM.
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Old 10-09-2005, 02:19 PM   #10
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Im bringing this back from the dead

What would be the difference between running the JDM UTEC and running a newer WRX UTEC??? If there is no difference other then the codes for the injectors then why spend a lot more on the JDM?

I called TXS and they said the JDM UTEC doesn't allow control of the AVCS, so why bother spending the extra $$ for no difference in performance?
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Old 10-09-2005, 05:23 PM   #11
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CEL = failed emissions testing in certain states.
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Old 10-09-2005, 05:54 PM   #12
LIQUIDSK8S
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Quote:
Originally Posted by DoctorNick
CEL = failed emissions testing in certain states.
Yet another reason im thankful to live in Fl.....no emissions and we get 93 octane
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Old 10-09-2005, 10:58 PM   #13
ejh25
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Quote:
Originally Posted by DoctorNick
CEL = failed emissions testing in certain states.
Are you saying that the JDM Utec on a JDM ECU has a lesser chance to through a CEL than a USDM WRX Utec on a JDM ECU?
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Old 10-10-2005, 12:29 AM   #14
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Quote:
Originally Posted by ejh25
Are you saying that the JDM Utec on a JDM ECU has a lesser chance to through a CEL than a USDM WRX Utec on a JDM ECU?
I believe so. Am I wrong to say this?
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Old 10-10-2005, 12:34 AM   #15
cronic
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Quote:
Originally Posted by ejh25
Are you saying that the JDM Utec on a JDM ECU has a lesser chance to through a CEL than a USDM WRX Utec on a JDM ECU?
If you run the US utec on the JDM ecu you get four injector codes. The JDM Utec fixes that.

Dave-
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Old 10-10-2005, 11:06 AM   #16
ejh25
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Quote:
Originally Posted by cronic
If you run the US utec on the JDM ecu you get four injector codes. The JDM Utec fixes that.

Dave-
Thanks for the clarification.
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