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Old 05-24-2008, 10:35 AM   #1
MilesToEmpty
Scooby Specialist
 
Member#: 129031
Join Date: Oct 2006
Chapter/Region: MAIC
Location: Point of Rocks
Vehicle:
98 RSTi
JBP

Default Speedometer help- v8 into 98rs

Ive been blessed to have a 98 with the funky speedometers accoring to everyone I talk to.

The normal Subaru sends the speed signal for the VSS through 3 wires that go and do their thing.

The GB wire goes to the check connector or gets grounded.
The GY wire goes to the cluster.
The BR wire goes several ways but needs to get to the OBD port.

Now apparently all Subarus ECU's do the thinking and figure the speed out and send that to the Clusters which process it and you got speedo!

Apparently on the 98 its somewhat backwards. The Cluster has 2 output wires for signals going to the ECU. The cluster calculates the speed and then sends it to the ECU....

Ive cleared it with several people... Including Andrewtech, Area1320, n ECS.

So Im looking to see if anyone else has had to deal with this...

Paul mentioned adding a pin for the Information spot on the cluster and wiring that that way... but I need those diagrams anyway...

Basically Im lost and Im trying to figure it out lol.


1998 2.5RS 5 speed
JDM v8 sti drivetrain

Thanks
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Old 05-25-2008, 02:37 AM   #2
Lamont
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Member#: 125190
Join Date: Sep 2006
Chapter/Region: International
Location: Japan
Default

Hmmm, If we're talking about the same Paul, then this is what he told me: Run a wire from the VSS right to the custer and ECU. Find a source for the 12v power and ground it to the pitch mount.
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Old 05-25-2008, 08:03 PM   #3
MilesToEmpty
Scooby Specialist
 
Member#: 129031
Join Date: Oct 2006
Chapter/Region: MAIC
Location: Point of Rocks
Vehicle:
98 RSTi
JBP

Default

yea thats what you do for every year but the 98
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