Help Wiring Shift Light
03-14-2008, 03:40 PM
#1
4th Gear Member
Thread Starter
Join Date: May 2007
Location: West Melbourne, FL
Posts: 1,373
Help Wiring Shift Light
So I bought ashift light with a digital tach but I seem to be having a problem wiring it. I wired the green wire to the coil pack on the drivers side closest to the rear (white with red stripe wire). Then I wired the red wire to a power source and the black one to a ground. My problem is that when I start the car the rpm's on the digital tach keep bouncing around between 100 and 300 rpms. I set the shift light and everything but the RPM's are way off and the car is idling just fine. The RPM's dont even follow the car when I rev. Anyone have any idea what the problem could be?
Neal
Neal
03-14-2008, 03:51 PM
#2
2nd Gear Member
Join Date: Apr 2007
Location: IL
Posts: 413
RE: Help Wiring Shift Light
You need a tach adapter.. .I used an Autometer 9117... They have Mustang specific instructions on their website... Gets wired into the backside of the fusebox under the hood and gives a tach signal that will work...
03-14-2008, 05:36 PM
#4
2nd Gear Member
Join Date: Dec 2007
Location: GA
Posts: 272
RE: Help Wiring Shift Light
ORIGINAL: ajaibr
You need a tach adapter.. .I used an Autometer 9117... They have Mustang specific instructions on their website... Gets wired into the backside of the fusebox under the hood and gives a tach signal that will work...
You need a tach adapter.. .I used an Autometer 9117... They have Mustang specific instructions on their website... Gets wired into the backside of the fusebox under the hood and gives a tach signal that will work...
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