Hi there,

Very happy to find this forum!

I have a '98 sc400 and the check engine light has come on. Took it to advance auto and they checked it out for me, bad o2 sensor the guy wrote some info (I think the part number and a description) on a card, I lost the card like a dumbass, I went back. This time, the guy that was there said there were 2 codes (o2 sensor and catalytic converter) and was very non-specific about the part, just told me it was upstream and bank 1. Could someone please point me to the exact o2 sensor I need?

Also, if I need to replace that cat converter as well, what is the best resource for that? the guy at advance auto said pep boys had some method of cleaning it out....

Thanks!