|Originally posted by Lou6t4gto:|
On the 4t65e HD on my swap, at the pass side axle housing,(on top), there is a sensor.... Exactly WHAT (Wires/adapter) am I needing to "GET" / "hook up" to this ?
I have wires "waiting to hook up" that say for VSS vehicle speed sensor. I Think someone said that an "adapter" is needed for this. Is there a "Diagram" anywhere? Pictures would be Great. Thanks
The sensor that is on the passenger's side extension housing on the transmission is the VSS (vehicle speed sensor). This sensor needs to be directly connected to the PCM - no interface module or anything. Just wire it up directly to the PCM.
Now, in order for your Fiero speedometer to display vehicle speed correctly, you will need to build an interface module that installs between the Fiero speedo and the PCM's 4k PPM VSS output. A schematic for this circuit can be seen here:http://www.gmtuners.com/fiero/speedo2.gif
Or, there might be a vendor or two on this forum that sells pre-made speedo conversion modules.
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