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Old 04-22-2003, 09:51 AM   #26
Homemade WRX
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Location: Mooresville, NC
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96 in the garage
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Quote:
Originally posted by stimpy

Cable speedo was mentioned because the older imprezas used a mechanical speedometer. The cable goes to the speedo and the gauge cluster sends the speed signal to the ECU. The newer imprezas use an electrical speedometer and the speed signal splits from the tranny and goes to the ECU and the gauge cluster. This will only be a concern if you swap in a newer transmission or if you use a newer factory ECU.

-Jon
Why would you have a problem if using a newer ECU? Are you talking about just the splicing and soldering of the harness?
Thanks, Micah
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Old 04-22-2003, 09:51 AM   #27
Homemade WRX
Scooby Guru
 
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: Mooresville, NC
Vehicle:
96 in the garage
search FIRST, then PM!!!

Default

Quote:
Originally posted by stimpy

Cable speedo was mentioned because the older imprezas used a mechanical speedometer. The cable goes to the speedo and the gauge cluster sends the speed signal to the ECU. The newer imprezas use an electrical speedometer and the speed signal splits from the tranny and goes to the ECU and the gauge cluster. This will only be a concern if you swap in a newer transmission or if you use a newer factory ECU.

-Jon
Why would you have a problem if using a newer ECU? Are you talking about just the splicing and soldering of the harness?
Thanks, Micah
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Old 04-22-2003, 10:00 AM   #28
stimpy
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2008 STI

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Click the submit button about 3 times fewer.

You could have a problem using a newer ecu and an older tranny because the signal must be tapped off the gauge cluster. While both ECU's expect a 0-5v signal, I am not sure if the pulses are the same between sensors.

-Jon
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