the tach is not acurate and is irratic all over the place we have check the power and ground and signal

we have CHECKED voltage and grownd at the plug as for the signal wire we ohmed ity to the computer (white/pink ) we tried a diffrent dash and computer and...

FIX posted 8/3/2006

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle