tach wire

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scooby-ej16

Member - Posts: 10

Joined: July 10, 2006

Location: Ireland

Posted: July 10, 2006 at 12:49 PM / IP Logged

I need to find the tach wire on my 98 uk impreza so my Galaxy 5000-rs can learn the crank time for remote start. Can anyone tell me how to test for this wire? thanks tach wire - Last Post -- posted image.

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Evolution-UK

Copper - Posts: 192

Joined: June 19, 2005

Location: United Kingdom

Posted: July 10, 2006 at 12:56 PM / IP Logged

You can either pick it up behind the instruments, at the ecu in the passengers footwell or take a feed from one of the injector wires.

With a multimeter set it to AC voltage. Connect the black probe to a suitable ground then test using the red probe.

You should find a wire which shows 1-2v at idle which will rise when you press the accelerator. Generally I pick it up at the dash.

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12voltmaster

Member - Posts: 38

Joined: July 10, 2006

Location: Canada

Posted: July 10, 2006 at 1:21 PM / IP Logged

scooby-ej16 wrote:

I need to find the tach wire on my 98 uk impreza so my Galaxy 5000-rs can learn the crank time for remote start. Can anyone tell me how to test for this wire? thanks tach wire - Last Post -- posted image.

On my chart the color is : Blue or RED / green at coil on top of engine

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dea,can

Copper - Posts: 284

Joined: January 12, 2006

Location: Saskatchewan, Canada

Posted: July 10, 2006 at 2:44 PM / IP Logged

1.set meter to AC voltage

2. attch the black probe of the meter to chassis ground

3. start the vehicle

4. probe the wire suspected to being the tach wire with the red probe from meter

5. the meter will read between 1volt - 6 volts.

dragon

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scooby-ej16

Member - Posts: 10

Joined: July 10, 2006

Location: Ireland

Posted: July 12, 2006 at 9:22 AM / IP Logged

thanks for all your help guys, Ill let you know how i get on tach wire - Last Post -- posted image.

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tach wire

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