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Showing results for tags 'o2 sensor not ready'.
My car recently failed smog due to O2 Sensor and CAT was not detected by OBDII. The Smog tech recommended that I drive 200 miles or try replacing the battery. I confirmed my battery wasn't an issue after testing it and began my 200 mile drive. I figure I could probably pull it off in less miles if I varied my driving with city and street. After about 150 miles I plugged in my OBDII scanner and to my disappointment, the O2 and CAT was still not detected. I decided to do some research and read posts from people (non Porsche owners) driving several hundred miles with no luck. Three nig