2002 chevy pickup tach signal

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ericw

Member - Posts: 47

Joined: October 17, 2002

Location: United States

Posted: October 19, 2002 at 4:27 PM / IP Logged

I have not removed my instrument cluster yet to check it out, How do I know which wire is for tach back there? Is it odvious to tell which one if I deciede to go that route?

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Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: October 19, 2002 at 9:45 PM / IP Logged

There is a VIOLET with a WHITE stripe wire that you can use for the tach. If you use this wire, the signal may not be good enough for all RS units. If the starter does not engage long enough, use the WHITE wire in the same spot that you found the VIOLET/ WHITE wire.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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ericw

Member - Posts: 47

Joined: October 17, 2002

Location: United States

Posted: October 20, 2002 at 9:11 AM / IP Logged

Jeff, I can't seem to find a VILOT wire with a WHITE stripe in a plug above the valve cover. All I can find is a WHITE connector that connect the wires to the coils attached to the valve covers on both the driver and the passengers sides. I have looked all over on top of the engine. I must be looking to hard or in the wrong place. Can you be a little more specific on where the connecter is?

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Velocity Motors

Moderator - Posts: 12,488

Joined: March 08, 2002

Location: Manitoba, Canada

Posted: October 20, 2002 at 11:46 AM / IP Logged

Look for the wire at the ECM, ECM is located near the battery, down low, between the fender and the fan under the black plastic cover. On the 4.3L, the tach wire is at pin 20 in the connector labeled 'red'. On the 4.8L, 5.3L, and 6.0L, the tach wire is located at pin 10 in the 'red' connector. Use the WHITE wire

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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2002 chevy pickup tach signal

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