What color is the wire that runs the speedo gauge on a 91z28? I cant find a straight answer on this. Also, what connector is it on in the back of the cluster.

 

 

do you have the pic for all the qires on the cluster? I am trying to get my new Auto Meter electric speedo hooked up to work with my t56. Thing is, I have no engine and no way to drive test it to check it out so I want to make sure it is right before I put the whole dash back togheter.

 

actually, do I even need to hook up the OUT on the back of my auto meter speedo gauge if I am going to have the VSS disabled in the chip? Id rather disable the VSS function to make this whole setup a lot simpliar. Are there any side effects to disabling the VSS? Basically, what I want to do is just run a signal wire from the VSS on the t56 to the SIG on the gauge and send it on its way.

 

Here's the cluster pins...
https://www.thirdgen.org/schematics/...anelC1Pins.jpg

https://www.thirdgen.org/schematics/...anelC2Pins.jpg

As far as the VSS.. I'm really not familiar with the inner wokings of the prom details but, the VSS (afik) affects the operation of converter lock-up, IAC control timing and most importantly.. cruise control
You may get a real answer about that from someone on the DIY or DFI and ECM boards.

 

Well, I no longer have the cruise control setup. I tossed it out. I am having Fastchip burn me a new chip for my new setup. Ihope they can do something fo rme with the VSS issue

 

Are those diagrams for a 91 Z28? I ask because Im not sure if there is a tan wire in that terminal on the connector.