[NewArt]

Clear the codes and see what comes back after a day or so.
When the car is warmed up, using the Durametric, go to actual values and click on O2 sensor voltage before and after cat 2. I f you get a more ore less flat line and a wavy line, the cat is good. If both lines are wavy, the cat may be bad. I picked up a used cat from European Parts Depot on eBay for $120. It came with two O2 sensors. The problem is now gone and as a bonus, it also cleared up the SAI code I was getting! I don't know why this is but I'm not complaining!