> > 93 SE-R with 2 O2 sensors and OBDI. > 2? I have the OE 02 sensor in the downpipe and right down below it I got a wideband O2 sensor for my A/F analyzer. Comes hand with such black box as a S-AFC to fine tune the fuel delivery. Mike Jez 93 SE-R with lots of bells and wistles. 01 Max next on the list for cams :)