Im installing an autometer cobalt tach in my dx hatch and im 100% positive that i have everyhting hooked up right...red - power, green - to blue non striped wire on distributer and black to ground. white - for lights. on the back there is a blue and a brown wire, for a 4 cylinder you have to cut the blue wire wich i did. and for some reason the tach idles at 4,000 rpm and when u rev it it goes way past 10 faster then it schould. has anybody had this priblem befor?

 

the autometer tyach should have some wire that are looped you need to cut whichever ones are required for 4 cylinder.. Mine had 2 sets and I had to cut both of em

 

Yes, I believe you cut both looped wires in the back.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueIntegraBoy &raquo;</TD></TR><TR><TD CLASS="quote">Yes, I believe you cut both looped wires in the back.</TD></TR></TABLE>

 

cutting both wires raised the idle to over 8000 rpm.....

 

bump

 

are you sure you have a solid clean ground??

 

yeah its hooked up to the same ground as the motor....thats got to be enough ground for a tach

 

bump

 

Bump, got the same problem.

 

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