SG and UG wont work on '98 Lexus V8...well, apparently not on Australian delivered ones anyway. I ordered an Ultra Gauge for my '98 LS400 and i got an email back from
www.ultragauge.com informing me that unless there is a sticker in the engine bay`saying that the car is 'OBDII compliant' then the UG and probably the SG wont work either.... even though it has the 16 pin outlet.
..... bugger..... although i can use the MPGuino, which i am now trying to get as we speak as it doesn't rely on the OBDII port. .. ... ....