Electronic speedometer not working, electrical problem? [Archive] - Toyota MR2 Message Board

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I have a 1991 MR2 turbo. A previous owner had swapped in a 1994 3sgte engine, transmission, and instrument cluster (so it has the electronic speedometer). It was working fine but the speedometer was in km/h and the speed limits here are in mph. So I bought a replacement instrument cluster that was supposed to have been for a 93-99 mr2, but the wiring on the back of it was slightly different than the one I had and it didn