Now that I think about it, I think that the code for the turbo tranny is allways E153. The LSD ones have another number or someting... The S54 is the NA tranny. From the problem your describing it sounds like your left cable broke. It tends to be a common problem with the 91-92 NA trannys, not as common with the turbos. Its easy to fix, I have some shifter cables I'll sell you pretty cheap too. Id recomend some Hux Racing shifter bushings too...