I understand most of what your saying and have found the wires.I have tried wiring up different ways through the low and high signal wire with no luck. Being I am really not using the computer in the car I was hoping to bypass the PCM and tap right into wiring going to the dash and hoping that might work. Hoping that the since the dash only had 1 wire going to it that would be the signal wire.t the fuel gauge working and alt is reading (not charging) but it does work. I appreciate your input and will let you know what I come up with, Thanks for taking time too help Bob

 

Not sure if that's gonna' work since the W body uses a digital signal (pulses per mile) which is then interpreted and translated by the PCM then sent to the gauge.

 

Kinda what I was afraid of. Was hoping the pulse from sender would be what I needed to the dash. Thanks for the information.

 

Jeff, here's a link to an article describing methods and devices to possibly get around your dilemma:

Electric Speedometer Conversion - Junkyard Builder - Car Craft - Hot Rod Network

 

Thanks , I keep you posted

 

Here's a link to a thread I found on another forum that includes diagram similar to a gen. 6.:
https://ls1tech.com/forums/conversio...-terminal.html