tach wire, 1996 chevrolet c/k
Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=118821
Printed Date: July 15, 2025 at 11:24 PM
Topic: tach wire, 1996 chevrolet c/k
Posted By: stewie41
Subject: tach wire, 1996 chevrolet c/k
Date Posted: December 26, 2009 at 11:20 AM
On a 1996 Chevy C/k 305v8,on the coil there are 3 wires w/b-w-p which one is the tach wire,or I can use as a tach signal?
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978abc
Replies:
Posted By: howie ll
Date Posted: December 26, 2009 at 12:29 PM
Measure each with the engine running and a DMM set to 20volts AC
Your reading should be 2.5 to 8volts AC depending on revving up the engine.
Posted By: stewie41
Date Posted: December 26, 2009 at 1:30 PM
howie11-do you know which one-WHITE/ black or solid white? ------------- 978abc
Posted By: howie ll
Date Posted: December 26, 2009 at 3:13 PM
No, measure each!
Posted By: kreg357
Date Posted: December 26, 2009 at 5:35 PM
I believe its the White wire on the coil ( coil is at the passanger rear side of engine).
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Soldering is fun!
Posted By: stewie41
Date Posted: January 03, 2010 at 5:26 PM
This unit will only switch off the starter relay after receiving a 12 volt starting signal,does not work off the tach wire
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978abc
Posted By: howie ll
Date Posted: January 03, 2010 at 5:40 PM
Then I suggest you don't use it. Any unit not using tach sensing is going to be unreliable rubbish. The voice of bitter experience.
Posted By: stewie41
Date Posted: January 03, 2010 at 7:54 PM
Howie: Im going to take your advice. It was made in Europe or the laungage in the directions would indicate that is was.I think It works off the oil pressure switch. I was trying to save a few bucks. Live and learn. (A pig with a bow tie is still a pig) I Think my next stept is to go to ( i data link ) and ask for advice. thank you ------------- 978abc
Posted By: howie ll
Date Posted: January 04, 2010 at 3:46 AM
Bet it was China, I can't think of any Euro manufacturer that makes remote starts! Any way all the "UK Branded" alarms come from the same factory that makes DEI!
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