I have searched oxygen sensor, ox sensor, o2 sensor,fault code, faulty oxygen sensor, and about 10 other permutations and gotten 1000 results , none that addressed the issue of a 17 ping fault code on a 1990 300se. I am probably too ignorant to correctly use the search function. But I can't find the information that I need. The good news is that I am intelligent enough to follow the directions for the code reader/reset system and cleared the 17 blink code and check engine light is now off.