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Old 06-03-2010, 09:56 AM   #1
Maverick7531
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Location: Allentown, PA
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2002 WRX - '04 EJ257
w/ ECU & Fuel -'04 5MT

Default 04 STI Harness - 02 WRX Cluster Does anything need to be switched?

Hey... I'm almost done with my swap, except the a$$holes who sent me the motor, harness, and ECU forgot to send the -Instrument Cluster Wiring Harness-. Sooo... while I'm waiting for that I have ended up...

...reading almost every Schematic and Wiring diagram out there. However, I was still wondering if there is going to be a problem between the Speedometer, and the Tachometer-since the WRX and the STI Clusters have the gauges in opposite position?

I figure the ABS light might come on, but besides that its not gonna have a problem with stuff that it isn't even programed for... Like the DCCD.
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Old 06-03-2010, 10:17 AM   #2
NitroTrike
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Location: GWR, Florida
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2002 wrx w/ STi guts
174k miles on Mobil 1

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The speedo and tach will work fine. They are wired internally different inside the cluster.. I popped a 04 sti cluster in my 02 just for laughs, and it worked fine.
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Old 06-03-2010, 11:31 AM   #3
kayen
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MY07 WRB FXT

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NitroTrike is correct about the 04 Sti Gauge Cluster. It's on the 05+ STi gauge clusters that won't work without a wiring change.
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Old 06-03-2010, 09:39 PM   #4
Maverick7531
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w/ ECU & Fuel -'04 5MT

Default

AHH PEOPLE... LISTEN TO WHAT I'M SAYING!!!!

... I DON'T HAVE an STI gauge cluster!

'04 STI (EJ257) Motor, '04 STI Wiring, and '04 STI ECU, '04 STI Pedals, '04 STI Fuel System, and '04 STI Steering column/Key[Lock]

I am intending on using (like the title of this thread says...) my ORIGINAL ('02 WRX) Gauge cluster.

-----------------------------------------------------------------------
-For those who are still (for some reason) confused-
Pretend I have an '04 STI...
...Will there be a problem if I put an '02 WRX gauge cluster in my car??

-----------------------------------------------------------------------

Please don't reply with anything about putting an STI Cluster into a WRX
... we are supposed to be talking about putting a WRX Cluster into an STI!

Last edited by Maverick7531; 06-03-2010 at 09:48 PM.
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Old 06-05-2010, 12:07 AM   #5
Maverick7531
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w/ ECU & Fuel -'04 5MT

Default

Bump...

Hello?? Anyone?
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Old 06-08-2010, 11:13 AM   #6
Maverick7531
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w/ ECU & Fuel -'04 5MT

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...Bump for intelligent answer!
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Old 06-08-2010, 08:46 PM   #7
Jaxx
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Subaru-less :(

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its an odd request but a valid one
you may have to be the pioneer here

that said
if a=b then b should = a

or
if 04 works in 02 then an 02 should would in an 04









or it might catch on fire and burn the car to the ground ... but that is highly unlikely
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Old 06-09-2010, 12:06 PM   #8
sense of nature
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It will work just fine
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Old 06-10-2010, 04:50 PM   #9
TheLordChesterfield
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Blue

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The plugs are opposite! They will work though.
Remember the transitive property!

A = B
B = C
A = C

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Old 08-11-2010, 10:30 AM   #10
Maverick7531
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Join Date: Jan 2010
Chapter/Region: Tri-State
Location: Allentown, PA
Vehicle:
2002 WRX - '04 EJ257
w/ ECU & Fuel -'04 5MT

Default

Well I haven't checked this post in a while... It seems to work fine except for the backlighting wouldn't come on.

A=B but who is to say that B will be back compatible with A... when we're talking about computers/Software it is completley different.

Meaning: the WRX may be able to use STI programed Items, but who is to say that the STI can use a less advanced WRX cluster... PLEASE only answer if you KNOW... I apprecieate that you told me your answers were assumptions... but I jsut wish somone would know... Like the one guy said "I might be a Pioneer" ... Although I don't know why? There are plenty of swaps-There has to be somone out there with an 02 WRX that put An 04 STI Motor/Harness/ECU into the 02. I don't even see why you guys think that would be wierd... If i ordered the stuff I NEEDED then the cluster wouldn't be included...
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