Mike wrote: > don't think U can use a 91-92 ECU in a 93 and 94 due to it having a > mechanical speedo vs electronic on 93-94s. Car will run with a 91-92 > but speedo will not work most likely- have not tried it. My '93 drives fine with a '92 ECU in it. Speedometer works great too... when the VSS works, that is. Dan