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1997 Cavalier Tach Wire

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=3093
Printed Date: July 20, 2025 at 8:13 PM


Topic: 1997 Cavalier Tach Wire

Posted By: par3721
Subject: 1997 Cavalier Tach Wire
Date Posted: August 26, 2002 at 5:42 PM

i am installing a python 1500 on a 1997 cavalier.
the only wire i can not find is the tach wire. is there any other place the tach could be found other than the PCM? where is the PCM? i checked the passenger fender to no avail. i checked every white wire in the large harnesses of wire under the hood. no luck. the car is an automatic 3 speed. no tach on the dash but could there be a tach wire in the dash?
have installed many alarms before with no problems locating the tach wire, except on my car. please help



Replies:

Posted By: mobiletoys2002
Date Posted: August 26, 2002 at 6:43 PM
If you have the 2.2 liter engine the wire can be white or orange at the pcm. I hope this helps as i have no more info than this. These same wires can be at the ignition control module at the back of the motor in the center of the car .posted_image




Posted By: par3721
Date Posted: August 27, 2002 at 12:44 AM
thanks for the help i did find an orange wire in the biggest harness under the hood but did not test right. ill look for more.posted_image




Posted By: Chris Luongo
Date Posted: September 01, 2002 at 11:21 PM
Just grab an injector; it always works for me.  At each fuel injector are two wires.  One wire will be the same on each injector; don't hook up to those.  Hook up to the wire that is a different color on each injector.





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