ok, i just did a 4l60 to t56 conversion on my 93 camaro, T56 is out of a 94..the speedo doesnt work correctly, it reads i am doing 150 mph when i am doing like 25 mph.anyways i just checked my OBD1 and i sent the following codes: 24(VSS) 31 and 36(left and right rear speed sensor circuits) and 41(I have no idea, i think it has to do with ABS) anyways, my ABS INOP light is always on and my car is cutting out tremendously going down the road, but i think that is to do with the VSS. someone plz help. thanks

 

If the wiring was done correctly, the speedo should read about 50% low, not that high. Also, you have to get the M6 computer program in order for it to work correctly. You can have a dealer reflash your PCM, but I have no idea what they will charge you for that. As far as the ABS code is concerned, I am not real sure about that, the only thing I can think is that the PCM uses VSS and wheel speed sensors to engage ABS, but that may just be a wild theory.