Originally posted by noobvang@Aug 21 2003, 07:24 AM
One more thing, Correct me if i'm wrong but it this is a USDM 99 GSR then your ecu would have the immobilizer feature. You would then need to get the 96-98 gsr ecu.
If this is also the case, then you can get the OBDIIb to OBDI converion harness instead, but you would also have to buy the OBDI P72 also.