Ok, I put a new speed sensor and speed sensor buffer box in and my speedometer still doesn't work. Whats next? I did an engine swap to a non computerized carb and now the speedometer never moves the odometer doesn't work either. Was there something I needed to do to the ecm or cruise wires when I took out the ecm? (87 Trans Am)
Thanks

 

anybody??
Today I dropped another 60.00 for a gauge cluster and the speedometer STILL won't move!!! This is driving me crazy!!!! Are there any tests I can do? Are there any ground wires I need to look for? Any relays in the engine compartment that I may have disconnected? The car is equipped with cruise if that helps.

 

never mind now I fixed it

 

Could you enlighten the rest of us as to how you fixed it as I am having the same problem with my VSS/Speedo also.

 

What I did was to check the black with white stripe wire that is plugged into the VSS buffer box to see if it was grounded. Finding that it was not I spliced in a ground wire to it and now I have a working speedometer.

 

wonder if this would work with the digital dash setups. where is the box located??

 

ok are you talking about the white and black wires that come strait out of the vss and if you are what exactly did you do just cut the wire down near the vss and put it on the underbody or what ':/

 

there is purple and yellow wires come out of VSS. there is a black wire with a white stripe coming from the buffer box is what i think he is talking about

 

I just got an 89 iroc z with the l03 and t5 trans, i need help! My speedometer does not work either.
What are the most common issues and explanations for this fault please?

 

You would have a mechancal speedo. Check the following link for common problems/fixes:

https://www.thirdgen.org/forums/inte...eedo-woes.html

JamesC

 

Are you sure? I was under the impression that it would be an ecu controlled unit, i dont know that it is tho as i have only had the car a few hours.

 

If it's an 89 Camaro with an OE cluster, yes, I'm sure.

JamesC

 

Great! I was hoping it would be a cable, makes life a lot easier