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Tach signal wire??

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Old 01-12-2008, 04:34 PM
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Default Tach signal wire??
Hooking up HSW interface and would like to know what color , and pin# is the wire for the tach signal??
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Old 01-12-2008, 05:37 PM
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there is a tach signal wire behind the gauge cluster...it is pin a4...i believe its a green with white stripe.
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Old 01-12-2008, 07:28 PM
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Originally Posted by laynlow77
there is a tach signal wire behind the gauge cluster...it is pin a4...i believe its a green with white stripe.

Thank you!! this helps a bunch!!
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Old 01-13-2008, 03:01 PM
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I grabbed one coming right out of the PCM harness. It's white. Forgot the pin number, I searched LS1Tech for it...
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Old 01-13-2008, 07:39 PM
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Thanks guys!!
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Old 01-13-2008, 08:08 PM
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did that work for ya?
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Old 01-13-2008, 08:16 PM
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I have'nt worked on the truck in a couple of days. Been busy with the Family.
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Old 01-13-2008, 10:34 PM
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i could have swore the tach signal wire was white on the back of the cluster
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Old 01-13-2008, 10:42 PM
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Originally Posted by 2002C5COUPE
i could have swore the tach signal wire was white on the back of the cluster
I believe you are correct....Cluster pin A5, white wire.
Also at the PCM Green plug pin 10
Can also go to any of the ignition coils or fuel injectors and use the wire that is NOT pink, black, or brown.
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Old 01-14-2008, 01:17 PM
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Originally Posted by truckmann
I believe you are correct....Cluster pin A5, white wire.
Also at the PCM Green plug pin 10
Can also go to any of the ignition coils or fuel injectors and use the wire that is NOT pink, black, or brown.
hey that is good to know, thanks
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