Tach Wire
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=11139
Printed Date: September 11, 2025 at 10:49 AM
Topic: Tach Wire
Posted By: RaveChild
Subject: Tach Wire
Date Posted: March 19, 2003 at 5:17 PM
Can anyone tell me which wire is the tach wire on a 1996 sunfire gt?? I know it is supposed to be a PURPLE / white wire found in the engine harness, but i cant really tell which wire is PURPLE / white. Also I have found two PURPLE / white wires that may go to the engine harness. One is located in a plug on the IDI cover the other is in a small plug thing next to the IDI cover.
Replies:
Posted By: RaveChild
Date Posted: March 19, 2003 at 7:12 PM
I have also seen that it may be a white wire in the coil?? Any ideas??
Posted By: Velocity Motors
Date Posted: March 19, 2003 at 7:23 PM
The engine harness is found next to the battery, below the radiator hose, just above the transaxle. Use white or orange on the 2.2L motor, and PURPLE / white on the 2.4L motor. TACHOMETER | | engine harness *1 ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: RaveChild
Date Posted: March 20, 2003 at 2:08 PM
thanks but I already have that info. My question is, can I tap into the PURPLE / white wire on the IDI cover??
Posted By: Velocity Motors
Date Posted: March 20, 2003 at 6:24 PM
Test the wire first. The reason why the PURPLE / WHITE wire may not be an option is because the signal from it is not great and will either run your starter or only allow the starter to crank .5 seconds.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: RaveChild
Date Posted: March 20, 2003 at 7:03 PM
my car is the 2.4L model so it should be the PURPLE / white wire right?? The engine harness is mounted to the tranny right??
Posted By: RaveChild
Date Posted: March 20, 2003 at 7:04 PM
if the PURPLE / white wire doesnt work do i have any other options??
Posted By: Velocity Motors
Date Posted: March 20, 2003 at 7:12 PM
If the PURPLE / WHITE wire doesn't work properly then use one of the injector wires ( uncommon colored ) and relearn the tach on the RS again.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: RaveChild
Date Posted: March 20, 2003 at 7:13 PM
thanks
Posted By: RaveChild
Date Posted: March 20, 2003 at 7:14 PM
Thanks..i'll try that
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