I followed these instructions http://www.scoobymods.com/forums/showthread.php?t=3309&highlight=cluster+sensor on scoobymods to install my OAT sensor on my v8 usdm cluster.


When i turn on the car, the sensor reads -15 degrees, but shortly after, the sensor just turns into --- F

Any ideas? Thanks


*edit*

the only thing i'm confused is this regarding the ground wire:

"15) Lastly, find the B28 wire, and cut it. It is YELLOW with a GREEN tracer. Put a blade connector on the wire coming from inside the dash. This will connect to the input lead on the circuit we made before. Take the B28 wire that came from the cluster side of the harness and put a blade connector on it. This will connect to the grounded wire in our circuit.

16) Put the circuit into the dash and connect each of the connector as per the schmatic and the howto. Attach the grounding wire on the circuit to a good ground in the dash. Put the new STi cluster into the dash and connect all of the connectors. Connect your negative battery terminal, and give it a test. If everything seems to work you're in good shape! Go for a drive and see if the Outside Air Temperature gauge works! "

It says take the b28 wire on the cluster side, and connect it to the ground in the circuit i made with the voltage regulator. Then it says attach the ground wire to a good ground in the dash??? :confused:

*edit2*

I now get a constant reading of 43 degrees when the ground end of the 5v regulator is grounded.

Not sure if it's the same, but have you seen this one: http://www.rspeed.org/howto/sticluster.php

Calvin

yea it's the same one. I dont know why its not reading the way it should :(

I know that mine reads -- when I disconnect the climate control buttons...don't know if that'll help.

one thing, the sensor was reading over 100 degrees. Now it reads in -15 degrees. Do i have to ground the voltage regulator somehwere on the car besides using wire b28 to ground?

bump for help please.

This is how I did mine from last year. I did a lot of R&D to make this work, and it has flawlessly for over a year. There is a thread on it. Here's my schematic. This is on an '03 WRX with an '04 USDM STI cluster. The resistor value involved is a 2.2K, NOT 22K...Good luck
LJ


http://forums.nasioc.com/forums/attachment.php?attachmentid=57873


The thread title
JDM STI Gauge Ambient Temp Wiring

i also did this mod and nothing happens i get a reading of -30C..

has anyone gotten this to work on a v7 wrx cluster in their bugeye?

I'm going to try this OAT mod on the 06 WRX cluster in my 03.

Does anyone know where I can buy the pins that will go into the wiring harness? I don't have a source to cut up some factory Subaru/Honda harness for it.

Hey LJ, is the schematic any different for a JDM v7 STi cluster? Reaalllllly wanting to get the outside temp working!

Thanks!