Tach Wire Question 98 Grand Am

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=49670
Printed Date: May 18, 2024 at 6:36 AM

Topic: Tach Wire Question 98 Grand Am

Posted By: rico_talbot
Subject: Tach Wire Question 98 Grand Am
Date Posted: February 08, 2005 at 8:05 PM

I'm not sure where to find the Tach wire for my 98 Grand Am, I find a harness beside the coil pack, it does have a few wires coming out, four wires from the one plug and two from the other, I have tried both the white and the Purple White wire, like some people have said could be it, but the car just cranks for a second or two but doesn't stay running, if you turn the key for the same amount of crank time it fires right up.

If anyone has any ideas please let me know.

Thanks Rich

Replies:

Posted By: rico_talbot
Date Posted: February 08, 2005 at 8:14 PM

I put a multimeter on the white and got a small voltage at idle and did increase with rpms

I did the tach learing thing several ideas and I as far as I know it worked

Posted By: thepencil
Date Posted: February 08, 2005 at 10:01 PM

Any chance you might have a PASSLOCK I in the car? Just a guess.

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Be careful whose advice you buy, but be patient with those who supply it. posted_image

Posted By: johnnydi77
Date Posted: February 11, 2005 at 9:46 PM

Your tach is fine. Your problem is that you are setting off your security. That vehicle has passlock 1 and needs to be bypassed.

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John J. DiStefano Jr.

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