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black90lx
02-15-2007, 10:30 AM
i just bought a autogauge tach i was wondering which wires go where and can i just hook it up to the msd 6al box? it is going in foxbody. i also have a msd 2 step i need and i dont know how to hook it up eathier. thanks for any help
Timido
02-16-2007, 06:22 PM
MSD instuctions for the 6al show a Tach output and how to hook up the 2 step.

http://www.msdignition.com/pdf/6%20series/6series.pdf
black90lx
02-17-2007, 11:16 AM
thanks
NXcoupe
02-20-2007, 04:33 PM
plug the green wire from the tach into the 6al tach output. Use a female spade connector on the green wire and plug it into the box. The two step just hooks into the high end rev limiter side of the 6al and then has a power to a switch and a ground. Do you have a mulitple position adjuster for rpm to go into the window switch? it allows you to dial in your two step rpm so you don't have to swap pills. Something to look into.
black90lx
03-04-2007, 01:29 PM
when my factory tach reads 2000rpms the monster tach reads 4000rpms, why is doubling the rpms? :confused:
dedpedal
03-04-2007, 06:40 PM
when my factory tach reads 2000rpms the monster tach reads 4000rpms, why is doubling the rpms? :confused:

Do you have a 4 cyl tach in a v8 car?
black90lx
03-05-2007, 09:51 AM
Do you have a 4 cyl tach in a v8 car?

what? i thought they were all universal and would work in any car?
NXcoupe
03-05-2007, 09:57 AM
If you bought the tach used, it could have had the wires clipped to make it a 4 cyl tach. You need to read the instructions where it tells you about the difference in 4-6-8 cyl operation.
black90lx
03-05-2007, 10:19 AM
where can i get the directions? all i did was hooked up the red,black,green and white wires. but there is some more wires coming out of the back of it but i really didnt pay any attention to them. it is an autogauge tach
NXcoupe
03-05-2007, 10:36 AM
Is it used? You can go to autometer.com and print out the directions.
black90lx
03-05-2007, 10:46 AM
yea i bought it for $50 off of a buddy
dedpedal
03-05-2007, 11:57 AM
http://www.egauges.com/AM_Instr.asp
Mista Bone
03-05-2007, 11:32 PM
yea i bought it for $50 off of a buddy

reconnect the 4 wires at the back of the tach, you'll end up with two loops.

Orange and Brown wires I believe.