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Hello trying to get the electric speedometer working, TBI is out of a 1993 Caprice wagon 5.7 All parts are out of the Caprice donor, Can anyone tell me which wire on the buffer module is 4k.This would be the output to the speedometer..? Correct....color and wire location seem to be different on different models...it could be green wire or it could be ( C ) location on the module....Any help would be appreciated....Thanks Ed.
Is it just wire color that is causing confusion? ppl/white has been used for a speedometer signal.
I wish it was that simple, I did get an answer and schematic on 67-72 truck board. I still need to add the yellow and purple wire for the VSS to the trans, Howell TBI harness is connected to the ECM but it still needs the signal to the speedo, and the green wire also for the 4k wave. Thanks for chiming in I hope to have this solved this weekend...